Foundation recommendation

I have combination skin but mostly oily and I have terrible terrible cystic acne which can become very huge and red. I really would like a foundation that isn't sticky or tacky but very, very full coverage to cover my red acne. I've tried almost every drug store brand foundation and find most of them really suck as far as coverage goes I have to literally cake make up on my face and feel like I can't breathe in order to hide the acne. I've also tried the tarte clay foundation which was okay but not my favorite and I've tried Kat von d lock it tattoo foundation and I liked it for coverage however it's just so sticky and gross feeing. Can anyone (especially those with bad acne) recommend some good foundations? Pictures would be great too!