How to find if the girl is suitable for me or not

Wouldn't you know if she is suitable for you if you guys are close?

You can always try talking to her family or try getting your family involved.

Everyone has their own character and personality. Basically there are no two people who really suit each other. All they can do is try to adapt to each other through mutual understanding, mutual respect, and accepting each other's shortcomings.

So bro, you shouldn't think whether she suits you, but think about how to adjust yourself to suite her, and vice versa.