Well, I have no idea about how you'll personally fit into a fighter cockpit. You asked about knowing tall fighter pilots, and I said that I knew several who are taller than you.
But, I had a previous Squadron Commander in the F-15E who was 6'7", Chad Hennings' girth in the A-10 has been a long-talked about story (he was an NFL player who fit in okay). If we were talking about flying a Spitfire or a Bearcat or something, then there might be some issues with tall or wide-shouldered pilots. But, with most fighters, a bigger person will fit in there just fine.
I'm 6'2" and have pretty wide shoulders, and have had no problems in the Strike Eagle or T-38. I have some F-16 time, and it was a little tight (sts) but completely workable.