This task of choosing optimal altcoins to invest can be mitigated significantly by placing assets into some crypto investment fund, which will rationally redistribute assets depending on the market analysis between different coins and cash.
For example,
Crypto10 smart index fund provides investors with exposure to the top 10 cryptoassets by market capitalisation, while limiting loss of capital through a dynamic cash hedging mechanism. The weekly rebalance period allows the fund to be nimble and it would have been able to retain the vast majority of the fund value at the peak of the bull market.