Short answer, as it sounds today, are none.

But you can check coinmarketcap to find out which are the hottest and most popular exchanges right now (it's going to be Binance as always) but as someone who once preached great about the "importance" of centralized exchanges in the past, I think you shouldn't look at exchanges the same way you'd look at your personal wallet. They are very unsafe considering you're entrusting your coins to someone who eats hackings and scams for breakfast, and at the same time there's also issues back and forth with Exchanges fooling their stakeholders as well as customers by misappropriating customer funds for personal use, which is what happened in FTX, as well as also declaring assets that aren't even dedicated to the exchange just to paint the false impression that they are ready for bank runs, among others of course.