Adding Devers probably doesn't win them their division or make them a true contender this year. Just because you are a big market, doesn't mean you should throw away money. Adames and Devers are gonna be boat anchors for them pretty soon.
Tibbs is a first round pick doing well and Bello has good stats (although he is old for the level). Devers is owed a crazy amount of money and is pretty much only a DH going forward with attitude problems.
Toronto could use another starter and they have been getting good production from multiple 3B.
Blue Jays: Civale
Brewers: Clement
I normally like to do BTV but they didn't have a recent one on Civale (and I thought it was high regardless)
Baseball Trade Values has Megill listed at 11.7. If that is true, you could get a good player.
I think after trading Hader at the deadline a couple of seasons ago, I don't know if they do it if we are still in contention.