BS”D
Chazzan Helfgott has spurred a bit of interest in chazzonus; I never owned a chazzonus album in my life until Hasc 19 when I heard him sing. The next morning I ran out and got a copy of his album. I also enjoy the remastered Yossele Rosenblatt recordings from Aderet/Mostly Music. There are some good younger chazzonim whose videos are on YouTube; two brothers named Lemmer come to mind.
I am not sure that R’ Dovid Werdyger’s recordings are really chazzonus; he was a chazzan by profession and training but any of his recordings which I have heard are actually neginah.