Your mentioned altcoin are best i think. But some problems in ripple (xrp). Anyone can invest on eth or bnb. Both altcoin is best for investment. ETH is second position on cryptocurrency market. Huge volume and huge people investing on ETH. Also eth chain is very popular. Next BNB also very good altcoin. Day by day bnb chain being popular. And usability are increasing day by day. Because BNB is a products of Binance. Ao its future very bright.
We already know ETH and BNB are the best options to add to our portfolio assets when prices are low, we should take advantage of market conditions to buy those two on a defensive basis as there are market issues about the next correction, so we use options diversification strategy to buy at multiple lows so that will generate high profits when the market price has recovered from various bad issues about crypto.