Bulgaria National Team Help

Hello, I recently took control of the Bulgarian National Team and I was wondering if anyone out there could give me some suggestions because I do not know who anyone is. Some tips I would like would be players who are regulars amd are called up almost all the time. Also, I would like to know which youth players I should keep an eye on and players who have not received caps and any other Bulgarian players that might help me out.

Thanks for the suggestions.