I think it's best to hold altcoins now, the HODL season is back once again after few years of intense bearish market, I regret selling my bitcoin at 17k last night thinking it will be tough to see more uptrend but I was damn wrong, now all I have left is my altcoin portfolio, this isn't a time to be in haste, be patience and get the reward
Now cryptocurrency market raise and altcoin holders have a good profit on holding altcoins

Also many altcoins has staking system which allows to get reward on holding.
Also it is necessary to check everything before investing: prospects, security and the future of altcoin. Here some information
https://bamboodefi.medium.com/Be careful and check everything

Holding promising coins is still the right decision in my opinion! Moreover, now the main cryptocurrency is showing very impressive results!