Can someone please recommend me really good liquid foundation?

Well, if your going for something more sheer-medium coverage, that really evens out your skin without building too much, than i recommend Tarte Cosmetics Smooth Operator tinted moisturizer. But if your looking for more coverage than i would say to use Laura Mercier Silk Creme Foundation, which i highly recommend because it covers all of my imperfections and looks nice :) both are a little bit of a splurge, but really, really, worth it and do last a good while. :)