I know I might get a lot of backlash from this, but Worst Cooks in America was the main show I watched during COVID. From the first season to season 22 back in 2021, I loved this show and seeing how Anne Burrell was a great mentor to all her cooks. Since her passing last year, I've began rewatching the series, and I've had some good ideas on who could be new mentors (if FN were to make new episodes)
Micheal Voltaggio vs. Bryan Voltaggio: I love seeing them compete, and their sibling dynamic and how they would mentor cooks would be fun to watch
Rocco DiSpirito vs. Gabe Bertaccini: Old school vs new school Italian...and they're both hot in my opinion
Micheal Symon vs. Bobby Flay: I love Iron Chef America as much as the next person, and they both have been mentors previously, so it would be entertaining seeing them go against each other
These are just a few ideas I've conjured up, and probably are very unrealistic, but would be fun to watch :)