You are not late to the party actually. There is still a lot to happen. These are definitely exciting times. Here is one strategy that you can use https://bharatafinance.com/best-strategy-to-make-money-with-cryptocurrency-without-losing-job/

Very much possible as it has immense potential. It is expected to reach 2000$ by 2018.  It is already touching around 800$ so 1000$ is just a matter of a few weeks. https://bharatafinance.com/eth-2000usd-should-you-invest-now/

Ofcourse altcoins can be good. They are here to solve a few problems related to payments faced in many areas . They may not be as powerful as bitcoin is, but they have potential. Though not all altcoins are genuine and give good returns but there are many which can be considered good investments. Here is a a good review on a very capable altcoin EOS. https://bharatafinance.com/eos-review-should-you-invest/

Here  is a detailed analysis on IOTA that would be of some help for you. This might answer your question in a more scientific way https://bharatafinance.com/iota-analysis-review-should-you-invest-in-iota/

I personally feel Ethereum would be a good buy for 2018. As it is destined to go very high. I came across an article recently which was talking about how ETH can cross 2000$ in 2018 https://bharatafinance.com/eth-2000usd-should-you-invest-now/

Ethereum is a good crypto to invest. It is the second best crypto after bitcoin. According to recent studies it could well touch 2000$ in 2018. I read an interesting article on it. Please check it out https://bharatafinance.com/eth-2000usd-should-you-invest-now/

If anyone is looking to Buy Bitcoins in India. Here is a complete guide with every step explained in detail https://bharatafinance.com/how-to-buy-in-bitcoins-in-india/

ethx has a user friendly interface and is very simple to make transactions. I was introduced to ethx by a Cryptocurrency blog https://bharatafinance.com/ that i follow. I am really thankful to them for it. Keep up the good work the folks at ethx.

There are a lot of good altcoins i believe where one can invest.
Ripple
LTC
NEO
OMG
IOTA

Here is a good post on IOTA that i found to be interesting and worth checking out https://bharatafinance.com/iota-analysis-review-should-you-invest-in-iota/