Id say, with respect with the King. Bitcoin it is. Ethereum and BNB is more stable in comparison with other altcoins, and they are used on a lot of major and amazing projects.
But then again, this kind of investment takes time and research.
what is the best to,
When to buy, and when to sell.
Nothing beats bitcoin as the best and for the altcoins, those two are now the top choice of many holders, BNB and ETH. Even the two has its competition in the smart contract.
Still, they've been loved by most projects that are building their next gen type of projects such as NFT and whatever comes next to it. You sit and hold these coins and you don't have to think how they'll perform within the next few years.