What's the best and safest way to earn interest on my ETH?

I've been doing some research and I cannot for the life of me figure out which option is best for what I'm looking for...

I'm looking for the safest way to earn interest on my ETH without having to turn it into some other token, I'm also looking for the best interest rate I can get without having to worry about locking it up until ETH 2.0 comes out.

So far I've looked into BlockFi, Celsius, Compound, Aave, etc.

BlockFi seems like the best that I've read about so far.

Does anyone have any good experiences that they can share or anything they would recommend?

Thanks!