I want to know how to find airdrop or ICO project...how to check scam or real and how much profit airdrop can make...and if u have experience about airdrop or ico things can u share this exp in here:

You could actually find different threads about promising ICOs and airdrops here in the forum. It's better to look for good projects here in Bitcointalk so you'll have an idea about their legitimacy. We must know as early as possible if we're joining a trusted and legit project because, to be honest, scam projects are everywhere these days.
This forum is a good place to verify the value of a project running an airdrop but such topics are not in their heyday with lively discussion, it takes a lot of days to get the comments, besides, quite a few airdrops and ICOs mentioned also get no response when people are no longer aiming for such values, current value is no longer in the point of fairness to the user, only for those with passion and hoping for good luck every year. Many hours of searching and labor on ICOs and airdrops also don't add too much of an account percentage, taking this time for investment research and bounty can sometimes increase by more percentages