It sounds like you are in the early stages of finding a therapist. Maybe just consider this phase a "testing out" phase and that you haven't really chosen your final T. I think it would be OK to try out the counselor your Dad suggested and see if that person is a good fit and compare to the person you've done 3 sessions with. Also consider that if they are pretty much equivalently helpful, maybe choosing the one with the lowest fee would be appreciated by your parents, who are paying. All other things being equal... It is really nice of you to consider that.

I'm not sure what a grp is that your mother suggested. Does that mean a group? If it is a group, that doesn't necessarily duplicate the services of an individual therapist, so I wouldn't see any conflict there.

I see a therapist for individual therapy, a PNP, and a family therapist every few weeks for joint sessions with my daughter. I don't have any trouble or conflicts with these three providers. I see the PNP once per month for meds, but she is also a therapist, and sometimes we spend longer talking about issues in my life and she bills me for a therapy session instead of just a meds consult. I'm OK with that. She provides something different from my regular therapist. And if I need the extra support, I'm glad she can be flexible and provide it. She's female and my regular T is male. The dynamic is different. Different people can be helpful, but it might be good for you to bond first with one main provider and then see if you need additional services (group therapy, for example).

I think you are really articulate and it sounds like you have a really good attitude towards therapy. I hope you get the help and support you need and have a good experience in therapy.