It seems BlockFi is the front runner. They seem to have partnerships with the major US crypto exchanges, e.g. Gemini and Coinbase (I am in the USA). I am also googling and trying to educate myself.
But, I have serious concerns about learning my crypto to 3rd parties. What happens if the institution that I loan to, for example BlockFi, goes brankrupt? I assume I will lose my crypto. Would it be safer to loan to an exchange and I don't run that risk?
BlockFi seems a good one, and they are very popular not only in the US but in so many other countries. I have not tried lending or borrowing before, but I’m very much aware of these crypto lending platforms and I have done research on them before.
I make use of Luno exchange and wallet, they have this feature where you put your bitcoins in a special wallet that’s meant for this purpose of lending, but they will be the ones to be handling it and you can take this money out at anytime. Their annual return is around 4% which is not as much as what you will get from Blockfi. Then there is also Nexo, which is quite popular in the crypto market.