what's your price range?
and what are you trying to do with it?
I've had/have a few springers. Beeman R9 in .20 from the 90s. Sig ASP in .177 (sadly sold the .22 ASP to a buddy before I found out they discontinued them). Had a .22 Gamo gas piston Whisper or somethin like that.
Have a .22 Benjamin Marauder PCP that I fill up with a Hatsan Spark compressor.
And a bunch of CO2 and pneumatics....
Beeman R9 is the softest, quietest of the bunch, probably the most accurate too. But it's seen a lot of tins of pellets and got a tune around 1999. 760 fps .20 round nose pellet at 25 yards is barely acceptable for taking out squirrels. But lots of fun to ding a steel target. Easy to cock, smooth, legendary trigger. Cost me $500 back in 1997 with a bushnell scope mounted.
The Sig ASP's are beasts. Amazing accuracy, solid power, great trigger. Terrible shame Sig stopped making them. Gas piston so you could theoretically leave it cocked as opposed to a springer. Pretty loud though, because they're beasts. Sig even made a decent 4-12x40 scope for em.
The Marauder is just fun. Mostly because I can just rack the bolt and hit my target and repeat for ten shots and throw another mag in there and keep going. Think I can get 40 solid shots before I run the compressor again. Can't recall if it's all that loud, but I've been shooting it in a basement and haven't noticed it.
I would totally not discount a break-barrel springer, they've served me well for practice and knocking down squirrels. But air guns like most things are you get what you pay for. The $150 gamo was as powerful as the Sigs, but the trigger was garbage, accuracy was unimpressive, and the optic they sell it with wasn't even worth using as a halloween costume. When I buy airguns I expect to pay at least $500, hopefully with an optic but usually not. Speaking of optics, the problem with spring/gas pistons is you have to use a scope that's rated for such airguns. The multi-direction recoil of the piston slamming the column of air our a little hole dismantles firearm scopes. That said, it's totally possible to get a $200 chinese springer and have a hell of a good time with it. Just depends on your expectations and needs.