I've had great success in on-line dating. Have a steady gf currently, but before that it was just too easy. You are right - being tall, somewhat not gross and somewhat muscular does help, but no need for extremes, just try to look decent and don't worry too much about that shit.
I agree with TM.
I mean, Ive had A LOT more success on dating sites such as POF, okcupid, datehookup, as opposed to Tinder. To me, Tinder is a lot more difficult because its purely done by a phone app. The other dating sites at least you can chat via a computer. Women take forever to respond. I get a good amount of matches, but when you say, "hi" some of them take forever to respond.