... It's quite interesting subject but I need to be Sure where to put my money cuz there are many platforms that just bankrupt and users never get their money back
The difference between the income received from staking and bank interest is not very large, so you should not risk your funds in search of a high APY. You should remember that sites offering a high API can be fraudulent, the purpose of which is to encourage a person to place their money there, and then hide.