This is obviously a tribute group, but back when the real thing was happening in the early 50’s on city streets, nobody was recording it. I think one of the movies about Motown had some re-enactments that were terrific. I can’t find those on youtube.
These guys are a bit slicker and more rehearsed than the teens and young men in Philly and Baltimore who invented doo-wop while they were enjoying summer nights, but they get it mostly right. And sound wonderful.