Hair perm! need suggestions?

I'm turning 16 in late august and for my birthday I want to get a different hair style for my junior year in high school. I want to get a perm! I just don't know what kind. I have medium length hair (i'm hoping for it to grow more longer) so I'm going to trim it soon. It's not very healthy but I think it'll get better. My hair is thick and dark brown and not straight or curly -_-. I want really curly poofy hair :D well maybe not THAT poofy just really curly NOT wavey. Any Suggestions and pictures would be great (i'm open-minded). Thank you!