The problem with managers in this world is that you can't tell who are scumbags and who is legit.
The question is - what are you looking for IN a manager? Are you looking to be a cosplay model, like an Ivy Doomkitty? Or are you looking to be more of a fetish model?
A lot of times, models will have their husbands/significant others serve as their manager because they can trust them. But obviously your husband is a little busy.