IIRC wasn't there a moment on DS9 where Worf is said to have, basically, screwed up any chance of going further up the promotion ladder? A blot on his record that will foreverafter be held against him?
So that leaves... Geordi. We see him commanding a ship in the VOY: "Timeless" alt-future, so the possibility is always there. Or maybe Dr Bev, who we also saw in command-level positions on TNG, both in "Descent" and the anti-future "All Good Things".