Well, since you're new to revolvers:
Rimless cartridges (9mm) in a revolver are a PITA compared to rimmed (.357) ones.
A bobbed DA revolver (not DAO/DA-only), while being able to be cocked SA-style (IF there's grooves/purchase atop the hammer), are at risk of an accidental discharge (AD) while cocking (due to hammer slippage), and become
REALLY problematic if you cock it, then for one reason or another don't fire it.
Now, you have a fully-cocked revolver, w/o an easy way to decock. (BT, DT - NTS)
The shrouded-hammer S&W's mentioned above are right up your alley, but IIRC, they're 5-shot .38 Specials, not .357 Mags (The S&W Chief's Special Model 60-9 was available in .357, but IDK if a shroud's available for it)- as is a 6-shot Colt DS w/hammer shroud.
.357 mags ARE a handful in a small-frame revolver, though.
A S&W M49
A Colt
.