I teach about 50-60 new shooters (beginners) each summer using S&W .22 revolvers.
I have both J-frames and K-frames , Mod 34,63,17 and 18.
Overwhelming favorite is the 4" Mod 63.
Second is the Mod 34.
Nobody likes the Mod 17 but the lighter Mod 18 does get some favorable comments.
My advice...