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What .22 revolvers then?"
pretty much same criteria would apply as noted for such as 38/357s
for versatility, a DA/SA action all steel 4" to 6" barrel, adjustable sights
Number one on my list (by a large margin) would be any of the S&W K-frames
6" K-22, K-17, or K-18 (the 18 is a 4" barrel), all found only in used guns, not in production anymore, other than the extra pricey 'New Classic' lineup
current production equivalent is the S&W 617
all those revolvers have a very large fan base, for good reason
But if you like smaller frames better, there is the 4" Ruger SP101 rimfire and S&W model 63 J-frame. Strive to stay with not less than 4" barrels though, large frame or small frame, better sight radius you know than 2-3" snubbies, so give yourself a little plus. Any of Taurus' current production small frame 22 rimfires are a big gamble, lots of legit complaints about them, at least be aware. Their old model 96 (k-17 clone) was a fine target revolver, but is rarely seen now.
in SA only revolvers, the Ruger Single Six is the obvious choice
(the similar Heritage Rough Rider is the cheapest, and it's cheap build quality is pretty obvious, I would not recommend to a friend, unless you simply
cannot afford better)
Many of these SA rimfires come with both 22LR and 22 mag cylinders; that is something real rare in DA revolvers.
(do NOT shoot 22LR and 22 mag thru same cylinder)
Lots of great old stuff re: Dan Wesson and Colt rimfires, but it's not stuff you see just every day, and likely to be pricey.
Whatever you might be thinking for your 1st centerfire revolver, it would be a extra good idea to try and match up to, as a practice companion clone in rimfrire. Major plus, that.
(a 6" S&W model 17 rimfire and a 6" S&W model 19/66 38/357 is a pert near unbeatable combination
)
do NOT expect to pay less for a quality rimfire revolver than you would for a quality centerfire revolver
cheap is as cheap does
(you could ask my three grandsons same, all in your 20-something age bracket, and they would tell you same)
PS
another good non-branded gun forum to check out "all things rimfire" is rimfirecentral.com