Is there any kinds of altcoin gives constant rewards?
I am really confused with what you meant. Do you mean contact rewards when you are buying the altcoins and then you will get the constant rewards? If this, it means no because the rewards or profits to get will depend on the price rate when we bought and price rate when we sell. So it will depend on the return that we take.
But if you mean that when we are buying altcoins and they are offering like farming or staking, some of platforms give us the constant rewards, but sometimes, the rewards may not be high.
On the other hand, if you mean likely the property investment, just forget it, because crypto investment is very different.
Looks like you are looking for ponzi coins or shitcoins that offer staking rewards. Let me tell you my friend, all ponzis are scam. Most of the staking coins are scam or end up with you making loses once they start dumping.
If this is what he meant, it meant probably he was only following his friends or caught by the promotions from social media. This will be not good for him because this may lead him to be a victim, once more, of scam projects.