luno has a lower fee rate but they have very few coin, i think 5 coins, ripple, bitcoin, etherum,bitcoin cash, and litecoin.
binance has as many as 1000 and more coins and there have a p2p trading option for countries who do not take crypto but the feerate is high.
trust wallet has more than 2000 coins and there is option for you to add a news crypto to your wallet with the contract address but they have a high fee rate.
bitmart has as many as 3000 coins and they offer a lot of airdrops and the fee rate is quite minimal.
i hope yu can choose from any of this