I need legit bitcoin testnet faucet site for my project development, anyone here know where is it?
Here are a few you can check[1]. I'm not sure about the nature of your project, but none of them is going to give you any large sums. There used to be a list which I can't find anymore, but I don't think it had many more sites than this anyway.
[1]
https://bitcointalk.org/index.php?topic=5487239.msg63759683#msg63759683