I found out something very interesting. More weapons have been chambered for the 32 acp (or 7.65 Browning) than any other cartridge. (see Wikipedia) So your request for info on pistols chambered for it should end up very long. I, personally, have had five.
They are a joy to shoot, but difficult to reload for because of the small size of the cartridge and limited choice of bullets.
The 32 acp can be used in 30-06s (and other rifles) with a chamber insert -- that's a joy, too. They can also be used in my 327 mag revolver because they chamber on the rim (though not recommended.) The chamber on the rim sometimes causes feeding problems from the magazine if one isn't careful.
Needless to say, the 32 acp is one of my favorites.
willr