If you want to long term investment, I will visit the CMC page and research in the top 100, and buy the altcoins now at the dipping price, but I will not buy the BTC or ETH, it too risky, who know it will drop again anytime soon.
But that 2 tops crypto can also bring very huge amount of profits once the hypes bounce back,
there are many alternatives to choose but personally I'll go with this two for my long term assets.
While those other investment would be on the top 20 projects and will play and ride from each bounce
and fall of certain coin.