I don't think there are any tbh at the moment.
Think about where both teams are. Why would Ottawa trade Brady with 3.5 years left on his deal if they don't have to? Also why would the sell for futures when they're just out of their full, scorched earth rebuild and still haven't made the playoffs?
There'd have to be a hell of a roster player coming back, plus an overwhelming amount of quality assets to pry Brady from Staios.
I know panthers fans will laugh but if Barkov isn't in the conversation then there's no conversation to me. And not sure why Florida would do that at this point in time. I really don't think I'd want a combination of good pieces for a unicorn like Brady. It'd have to be ridiculous at this point in time.
Also gotta remember that they're in the same division which isn't nothing at all.
If Brady is ever traded from Ottawa, it'll be in the last year of his deal, and likely to a Western Conference team.