Have you had issues with bathing your dogs?
I have two boys and a girl. Honestly the boys are easy. I just put them in the bath tub and as soon as they are in the wet, they stay put until I give them a towel. One thing that helped with this was having them practice with treats and no water. Once I got them comfortable with being in the tub, I started to give them a peanut butter sticky tray so they saw it as a good place.
My guys use raw shampoo to keep their hair healthy. My girl has hair too but she has wiry hair so we do more of a co-wash to keep her soft.
The last thing I suggest is playing soothing music while in the bath... sounds crazy but it works to keep them from worrying about the outside world.