I find Binance and OKX quite interesting.

Binance is holding a lot of activities to attract users. Although the wallet is not user-friendly, they really pour in money.

OKX, on the other hand, is focusing on infrastructure and then finding ways to attract a bunch of project parties to become partners. It has a bit of a rural encircling the city feeling, 😄. OKX’s wallet services and APIs can be said to be the best in the world, with a sense that being slow is actually fast.