Well, since you don't want a clingy bird, I don't recommend a grey! Echo can be very clingy at times. She can play 'independently' in the sense she will get into everything. Basically, a very needy bird. She follows me around everywhere and only does this to me.
Macaws, also pretty needly. Beautiful birds, but even the smaller ones are demanding.
Green cheek conures some to mind... Not known to be clingy or loud and very sweet. I would looking into them. I hope everybody else has some good suggestions
