I have kept them with the budgies in the aviary and currently have 2 with the budgies. The other 3 are in the finch aviary.
Some will be fine with budgies others wont.
The two with the budgies are mellow but if put with the others my rosa male attacks my fallow male.
The 3 with the finches are fine with the finches but the rosa hen will have a go if a budgie gets too close.
Ideally id have separate aviaries for mine but how they are at current works until i can get bigger aviaries.
It does depend on the birds tbh.