The best token that means you are talking about altcoin here. In my opinion, BTC is the best but if it is about altcoin then I have some coins in my mind like BNB, ETH, DOT, and KSM. Most of them are unique on their own and they have huge community support. If you are talking about a new project then I want to say we should observe any new project for at least a couple of years before investing in them for the long term.