I wanted to ask that is there any amal to know if boy is right for me to marry or not?

You should speak to him first to find out if you are compatible with each other and then get advice from the elders.

If after that you are uncertain then we can advise of duas.

I wanted to ask that is there any amal to know if boy is right for me to marry or not?

If you recite 2 rakaat salaat hadya to Ummul Baneen as and ask Allah to guide you for making the right decision