There are a LOT of AirPrint-capable printers available nowadays (lot more than in the very recent past). Apple lists a bunch of AirPrint-capable printers on their website, plus all the major retailers sell them.
I just bought the Epson Workforce 845 All-In-One printer and I can't recommend it enough. It's a wireless printer that is also a fax machine, a scanner and a flatbed copier. I have used it to [flawlessly] print from my Windows Professional computer, iPad and iPhone. I got it at Amazon for [only] $180 (USD).
As I said, there are many out there - this is just the one I've bought. And, hopefully, others will see your question and chime in with their recommendations and experiences, But, at least it'll give you a start in your search?
Marilyn
P.S. And, our apologies for not catching your post the first time you posted. Sometimes, we just miss the new posts...