the question is what are all the coins you want to invest in? at least you include a list of your choices and we can provide input about the coin of your choice.
but if not and hear that you have very little capital then my advice is to bet your money on Ethereum.

not only as a transaction tool, but BNB is also feasible as a future investment asset. BNB and ETH have differences from each other but both are profitable, even ETH and BNB smart contracts are often used by project developers. In terms of speed, there are several other cryptos including TRX & LTC.

as he said, that he wanted to invest for a quick profit. but since he has $ 200 in Ethereum, I think he needs to rearrange their finances, like $ 100 for ethereum and maybe the rest for another project, I don't recommend that, just as an example if he really wants to reconsider. if I am in OP position, prefer to hold and not convert Ethereum into another coin.

not really, I mean the Altcoin increase doesn't always depend on the Bitcoin price increase and vice versa. but it can be said that the current Bitcoin increase has reached its Ath price all the time, after Bitcoin fell drastically in March but could return its value this month. for Altcoins I haven't seen a green sign. some altcoins are still significant at fixed prices such as Ethereum $ 600- $ 612.

I have seen a newbie account with low activation who manages a project and it is ultimately successful (newbie official account) I mean the newbie account of their project and some are the opposite. this is not a guarantee, but the most important thing is to do research, also ensure their background, including project developers, and continue to monitor the progress of their project.

many Traders make the best use of Defi Trends possible especially taking part in the Defi project only for a short time, they are good at managing finances and leaving after making a lot of money. but not recommended for someone who doesn't dare to take high risks.
I personally recommend investing in ETH and LTC.

In my opinion Ethereum cannot be replaced by other altcoins in the near future, but if it's just a prediction, I think BNB deserves to occupy and replace Ethereum in the market, because BNB is almost the same as what ETH has. especially platforms and Smart Contracts. This is not a guarantee, this is just a prediction.

In short, the fluctuation of the price of a coin can change at any time and an increase in a coin cannot be used as a benchmark that the coin can maintain its value in the following days. even though BTC is one of the top coins and dominates the crypto market today it doesn't mean that when the price of BTC goes up the ALTCOIN also goes up and vice versa.

after knowing that you only have 500 DOGE then my advice is that you don't need to convert it in Bitcoin or Litecoin. 500 DOGE when calculated at the current price of only around $ 2.2 and that's a small amount. you better HOLD it. if you have a lot of savings, just buy BTC / LTC and not to add more in the form of DOGE.

Airdrop from XRP was not as luxurious as Airdrop from Uniswap at that time, in fact I no longer heard any rumors about the XRP airdrop update. but maybe coincidence or not. and what happens now that the price of XRP is increasing quite well along with the increase in the price of BTC itself.

I just heard about the coin BASE, after I saw in the telegram group BASE and telegram Uniswap there were no notifications about some kind of Christmas giveaway, web updates, server problems etc.
but, as long as you are unable to provide detailed evidence of your transaction history then we will all think that what you are saying is a lie. but whatever it is, congratulations if you do get it, hopefully it's not bullshit 

it doesn't matter if you start introducing a crypto currency like DOGE to your friends, this is a good start and over time they will also know for themselves what Bitcoin or other crypto may be more profitable than DOGE. But I'm not saying DOGE is bad.

I don't see another altcoin that can replace the current domination of the Ethereum market. ethereum has proven to be strong and can stay in the top market in the crypto industry especially in the second place. If I'm not mistaken, last year XRP took over the Eth rankings but it didn't last long then ETH could take over again until now it still dominates in 2nd place in CMC.

It doesn't matter if you buy for $ 23k, but it is likely Bitcoin can pump higher than its current price,. Bitcoin is currently still significant at $ 23k, many estimate that bitcoin could hit $ 25k earlier in the year. so be patient and wait for the right time to sell it.

absolutely not. It doesn't apply to me personally, to others who don't really know. I love cryptoqurrency, but I'm not too crazy about it, I mean borrowing money from private companies or BANK just for crypto investment. I would rather spin the funds using the coins generated from the bounty and invest in as many BTC, ETH or coins as we want.

In trading you must always be ready in all the consequences also included in the decisions you have made. On the other hand it is the capital, the platform you are using, the coins you are trading, how much volume is in it, then you can also control your emotional attitude etc. It is important that you always monitor the coins you are trading as well so as not to lose the opportunity to sell

Such fraudulent strategies are familiar and it is true that it is their marketing one to deceive their victims, and they usually use them based on market trends, environmental conditions (Christmas, Chinese New Year, etc.) and people are often tempted by offers too high. my advice, always be careful before making a decision.

I hope that happens in the near future. looking at the current Bitcoin price movement I also have no doubt that Bitcoin in 2017 can be repeated. Moreover, the percentage of bitcoin movement is currently significant at the price of $ 22.7k. while some of the top altcoins are also starting to rise slowly, so, there is still an opportunity to buy at current prices.

I don't think now is the right time to try your luck at a project you want to invest in, if my advice is better focus on coins that are clearly real and profitable for investment. BTC and ETH. good advice focus on these two cryptos, pay attention to market movements and make the best of this opportunity.

maybe because they think that the project they invest in will bring you a return of 2x their initial capital, so they don't care about the high cost of gas and the most important thing for them is to buy it as soon as possible. Moreover, the presale is limited to 100 people. to be honest I just heard the Defi SpiderDAO's  project.