I would only suggest invest alts that are in the top 10 on CMC.

Check
- BNB, ath at $330, currently at $260
- DOT, ath at $38, currently at $36

These 2 are new in the top 10 list and have huge potentials.

Not a fan of ETH but you can try it as well, probably it will go back 2k, currently at 1.7k.

Yet, don't forget BTC, $60k is inevitable with its current price.