You have some of them that will give you interest of your coins holdings. You have to keep in mind that legit lending platforms will have much lower rates and that you first of all deposit your money and thus trust this 3rd party. Even if they are legit if they get hacked or something you could lose your investments. Honestly It might be good to look into coins such as COSS, kucoin shares, POS coins or some DPOS such as steemit and delegate your money to others to pay you interest upon - all these are guaranteed and somewhat safe but problem is coin price can fluctuate but I find them to be much better solution to get interest by holding than to trust some 3rd party.