I would not know how to help soeone. I know the best thing that I did to contribute to my RAH choosing sobriety was to stick to as many boundaries as I could.
You can maybe help them by making your own bottom a little higher, making a choice not to feed the alcohol use any longer, and to stop enabling.
I would not know where to tell them to go. SOmetimes getting into a room at a facility is a whole other battle for some people. My RAHs mom helped him do that stuff. I was too angry, tired, and detached at that point. (detached as I could be).
I do know what advice I would give to an SO or family member after their A has committed to sobriety:
-Make clear what you will and will not tolerate from the RA.
-Do not go back on these boundaries.
-Do not get blinded by the excitement that they are not drinking and eggshell around them.
-Expect the best from them, be proud, and treat them as adults. with loving compassion and detachment without sacrificing your own peace and schedule.
I was not as good at these things. These are a must.