XRP to other altcoins (ADA,SOL,Tezos, DOT)

Hey guys, I just deposited some XRP to my binance account from another platform as they dont offer much altcoins.

I tried looking at convert but it seems that it is a market order. I am quite new to binance and would like to find out how I can purchase ADA and SOL in the cheapest method possible. I am aware that there are no pairings for XRP/ADA and others so i guess my best option would be to convert it to another crypto like BNB but which is cheaper to do?