I can't find many who consistently do sounding or urethral play aside from jinwanxuan.
https://twitter.com/Wanxuan_jin1999?lang=en
https://www.coomer.party/fansly/user/407089956217954304&sa=U&ved=2ahUKEwiu3LS91f6BAxWtOUQIHWPQAUsQFnoECAgQAg&usg=AOvVaw3EBisM7ouYEor4RpYyfXmR