whats your background and ethnicity and what are you packing mate?
depending on ur size; a girl with above average bbbj thats sloppy and can go deep for average blokes may not be able to go deep for u?
would help the other bros out here if we know more info about u and to give better recs to set right expectations - i am sure theres a couple of bigger blokes on here that can recommend girls that can do sloppy deep bbbj
but overall id say the % of girls that can do sloppy bbbj and deepthroat bigger guys vs normal average guys quite substantial
also if rimming and DD is that important to you u can pretty much rule out the J girls
most K girls can do sloppy bbbj and awesome DFK but again the deep part that depends what ur packing
hope that helps
happy punting