Probably the best altcoins for investment currently is Elastos, Phoenix (Red Pulse), Fusion. These are really promising projects.
The best thing is BTC, do not try to find other coins, because the BTC is very cheap now, and the market will come back, you will earn a lot from the market if you patience. holding
Investing in Bitcoin may be a wise choice at this time as Bitcoin prices have fallen sharply in the past eight months and have not seen any impressive recovery this year. If you invest in Bitcoin then you will definitely be rich in the future and your job is just to keep and always make yourself feel most comfortable choosing this investment.