Defi allows you to get up to around 5% a year on your bitcoin in interest. KYC required
Freebitcoi.in guarentees you 4.08% interest a year on your bitcoin. Their site has 5% house edge and they have an actual mining facility to be able to guarentee this 4.08%.
Cred Earn aparently allows you to earn 10% APY on mulitple cryptocurriences including bitcoin, litecoin, ethereum. Not quite sure how they say they can reach this high. Charlie Lee even tweeted about it for litecoin.
Are their any other ones that guarantee a APY%?