If you wanna keep coins for 5 years, its mean long investment, you should choose big coins such as BTC, ETH (both is a must) and any big coin like BNB by binance or TRX by Tron network i suggest.
Why TRX ? Tron have survived since he was born until now, at top 10 almost 4 years, and nowadays, many NFT have bridge on Tron network, also have speed of transaction with small fee, so for next 5 years, TRX will be good, maybe the next BNB is Tron, IMHO
NFT projects are too new for long-term investment.
it would be better if you choose top market assets such as BTC, ETH, and BNB. in 5 years I believe there will be a big change in the value of the investment made.