For me Its yes Because Doge coin is one of the most "Resilient" Altcoin in the MARKET today no matter how or what is the condition of the Market still Doge coin is doing great despite of its Huge total Supply. definitely it has a future and even conquer other Altcoins with the same class in the near future!

Dogecoin has a large market cap due to it it cannot cross the high mark price and can only roam around to lower price until their is not a big news or anyone opting to take over dogecoin and develops it.

Of course, Bitcoin and Ethereum, that's about the ratio you decide.  Well, you still do not call the amount that you plan to invest. And besides them there are promising altcoins

Litecoin is not real competition to Bitcoin and as the rest of the alts is just following Bitcoins movements. I prefer Bitcoin for various reasons, but most important is that is very popular and the demand for it is always big.

Litecoin is better idea for investment because bitcoin price is to high. Litecoin is potential coin and it can gives you 2x to 3x returns on your long term investment. Litecoin is looking very promising for future due to its low transaction charges.