I think there is no better solution than BTCitcoin and Ethereum accumulation.
I rarely buy other altcoins, because I don't like to take much risk, but if choose from risky altcoins, I prefer bnb, solana and avax.
This case may not be suitable for everyone. Everyone only invests in coins that they are sure of. But everyone is also interested in hypothetical profits. The coins you mentioned already have high capitalisation, so they won't be able to give more profit than the no-name coins in the next bull market.