You go to Binance and here everyone is like in the True detective series "I'm so important", then $XRP or some meme will fly. So I want to give slaps. And if you are serious, of course, it is better to buy what has grown, but not much, provided that there is a good stock for growth, and not to buy at ATH because someone wrote that it will still give 100% 3000 x.
Among all the altcoins offered to you, almost no one sees $ETH for some reason, it has not grown much yet and has not even broken the local ATH. If there are some stable coins, then look at Ethereum.