Any defi coin i buy do i need to stake or can i just accumulate as much as i can on an exchange and hope for some profit?
Not all can be stake. But majority of the defi can be staked. If youre looking for a defi that is focus on staking I suggest mantradao and swingby. Both of their staking APR is high. If you go to exchange supported their staking, you can see that the reward percentage is 88% so its not a bad deal to buy a lot of mantra and just stake it on the exchange. They have upcoming rio defi so, I guess thats a good chance for you to buy this coin.