I think they definitely prefer Springer, but won't shy away from adding Realmuto if Springer picks NYM & LeMahieu stays with the Yankees. Would really be our only chance to add an impact position player at that point, and Realmuto also loses a significant suitor if the Mets end up signing McCann so his asking price may naturally come down. I don't see any other obvious fits for him either? Phillies are crying poor, Angels seem more concentrated on pitching, Yankees seem fixated on LeMahieu. Nats could be an option, however little indication they want to add anyone of significance this offseason.
You could add Realmuto and then proceed to flip Jansen + prospects for Lindor and then you're looking at one of the absolute best lineups in baseball*:
Biggio, 3B
Bichette, 2B
Lindor SS
Teoscar, RF
Vlad, 1B
Realmuto, C
Gurriel, LF
Kirk, DH
Grichuk, CF
*defense not included
Blue Jays receive: Francisco Lindor
Indian receive: Danny Jansen, Miguel Hiraldo, Riley Adams, and... Derek Fisher or Santiago Espinal?