I agree with trying them on. The rule of thumb that I've always heard is...while in the store, take them out of the package and place the goggles on your face but without putting the strap over your head. If the goggles have good suction around your eyes and don't immediately fall off, then it's a "good fit". That's how I've always done it, and for the most part...it works well.
As for a specific brand...I'm partial to Aquasphere. I've been using the Aquasphere Kaimen goggle for several years with good success. I have also tried their Cayenne goggle and liked it, as well. I tend to lean towards goggles that have a 1-piece design, as they feel more comfortable to me. However, your results may vary.
2012 Seven Axiom SL - Specialized Ruby SL 155