As far as your preferences go:
42-44mm sandwich dial Radiomirs- check
Do you prefer the 1940 case or wire lugs?
Are you wanting BNIB, used, or open to either?
Any preference on dial color and/or WR?
Are you open to the Submersible or Luminor lines?
Preference between manual vs automatic?
Just going off of 42-44mm new sandwich dial Radiomirs, you have the 995, 574, 620, 933, and 1144. Lots more options if you are open to 45mm, including the recently released 992. Plenty of awesome possibilities in the 44mm range with Luminors such as the classic 233.
Lastly, because I enjoy sharing pics of Panerai, here are a couple of mine I recently took after some strap changes: