I did a thing on capfriendly.
First pass, but I think all outside of the last trade seem pretty good in terms of "fairness" may as well let CP pick it apart
To MIN:
Frolík, Michael
Foo, Spencer
2019 4th round pick (NYI)
To CGY:
Zucker
To STL:
Kylington, Oliver
2020 5th round pick (CGY)
To CGY:
Edmundson, Joel [RFA Rights]
2020 4th round pick (STL)
To CGY:
Kadri, Nazem
Sparks, Garret
To TOR:
Brodie, TJ
Jankowski, Mark
To CGY:
2019 3rd round pick (VGK)
2019 5th round pick (MIN)
To VGK:
Stone, Michael
2020 4th round pick (STL)
To CGY:
Larkin, Dylan
2019 2nd round pick (SJS)
To DET:
Monahan, Sean
Czarnik, Austin
Gillies, Jon
2019 1st round pick (CGY)
2020 2nd round pick (CGY)
(Larken is my long shot, not even rumored to be available but he's the center I'd want that fits the age demographic of the flames)