12 step programs are not evidence-based, to the best of my knowledge (I do not have a personal need for treatment, but happen to have read some literature).

Harm reduction approaches have better evidentiary support, and are just more reasonable, at least on the surface (again, I do not have a need so I did not look in-depth, but from the cursory familiarity, harm reduction seems much more sensible).

So you should look into that alternative.