I would like to buy a few alt coins at Binance. I will transfer XRP from Kraken to Binance. Next step is that I have to trade my XRP for BTC, ETH, BNB or USDT. Which one can I pick best?

Normally I would say I can calculate what would be my best pick. But by the time I made my calculation (in Excel) the orderbook is already changed.
Is it just a matter of pick a coin (for example BTC) and do my trades and hope I had the best coin to trade?