There's so many burpers that it's hard to mention them all lol.
Ones I see that people don't talk about enough burp wise are Rosiemariefeedee, juicy angel, and Stuffed Sofie.
Black feedees also have good burps, but they are more hard to come by. Big Belly Judy, feedeemii, and a lesser known model moifeedeemoi are my current faves from that category.
What I prefer is consistency more so than loud trucker burps, or loud burps that comes once in a blue moon. It's better when it's not forced out like that imo.