For me it's Joe Thomas(LT)CLE.
Before he was even drafted as a top 3 pick he seemed to have his head on straight. Heard the news he was drafted by CLE in 2007 while he was out on a boat fishing with his old man on Lake Michigan.
Started at LT for the Browns as a rookie and played the next 10,363 snaps in a row pretty much at a sustained All-Pro level. Only a torn triceps pried him out of the lineup in 2017. Think about that for a second. He played for a DECADE for the CLEVELAND BROWNS and never missed ONE SNAP. On a CLE team that won 10 games his rookie season and never reached .500 thereafter he never rotated out at the end of yet another abysmal season playing outdoors in NOV/DEC in CLE. To the best of my knowledge he never held out, never demanded a trade to a better team(could you find a worse one?). He just played like an All-Pro.... every down...... every SEASON. That is just a level of sustained excellence in the face of adversity I'm not sure that I've ever seen, and we may never see again.
On top of all that it seems that now that he's retired he's giving more interviews and he sounds exactly like the same type of guy that would go fishing with his father during the first round of the NFL draft. He just seems like a guy that gets it. It's a shame that millions of characters have been typed with regards to a guy like Josh Gordon and maybe 1/1000th of the media attention has been spent on a guy like Joe Thomas.