As another possible start, ARRI publishes their FOV (h) for each of their prime series lenses. The FOV is highly model and manufacturer specific so if you have a lens you're trying to match I'd start with a spec sheet. ie. the 40mm ARRI Signature Prime has a FOV (h) of 49.3 degrees while the 40mm ARRI Ultra Prime has a FOV (h) of 30.6 (for Normal 35 Academy), 33.2 (for DIN Super 35), or 34.7 (for ANSI Super 35). When I create a scene I like to use a set FOV (h) and pretend like I'm using the ARRI Signature Prime lenses to force a scene selection similar to how you might with a real camera/lens.
https://www.arri.com/en/camera…ure-prime-technical-data2