Kucoin, Gate, MEXC, Bitget...they all have their own coins, I don't buy this kind of coin, but feel free to do so.
Also, I think your best bet would be BASE (the ecosystem launched by Coinbase). They don't have a BASE coin, but you could buy AERO (Aerodrome), it's the major dex in this ecosystem, a good coin - do your own research about each of your possibilities