Maybe indicate whether you want real bodywork, or just access to a pretty dick, etc.
There may be ways to fill both criteria, but “book a massage” is vague these days. Many good massage providers in LA - a huge range of types of men, services available and skill sets.
You could do just as well by looking RMassr and RM and see who lists on both, (lots in LA) if you primarily want erotic service more than spa-level bodywork. Then, 411 here with links to the guys who interest you, to get feedback.