75b - full size, safety
75bd - full size, decocker
Sp01 - full size, safety, rail
Sp01 tactical - full size, decocker, rail
75 compact - compact, no rail, safety
Pcr - compact, no rail, decocker
P01 - compact, rail, decocker
Omega models can be swapped between decocker and safety
Some of the above have alloy frames vs steel frames. I think 75 compact is steel, while p01 and pcr are alloy. I think all the full-size are steel frame (not sure though, there are variants)
Then you can get into stuff like cz shadows etc. They have upgraded parts.
P09 is full size polymer frame, omega trigger (decocker or safety), rail
P07 is compact polymer frame, omega trigger, rail
There are also the suppressor ready versions with threaded bbl and suppressor height sights.
P01 is similar to glock 19 size.