If you are into altcoin which is just a temporary investment better try to check some NFT tokens such as ENJ, CHZ, MANA, TLM and FLOW knowing that its the trend of the market this year, I think this is the right for you as a short term hodlings.
For me, I do not consider investing in altcoin temporary. Yes, we know there is nothing permanent but it can also last like a lifetime as long as the use-case of a coin/token is not lost. And since you already mentioned the NFT trend, I would also like to add SLP, AXS, and AAVE. I also like to play actual blockchain games that are better known to play to earn. I see that this trend is long-term as well.