Since your goal is restoring your marriage, I would ask for someone who is experienced in marriage counseling. I would be completely honest about your situation and explain you may be the only spouse attending the marriage counseling sessions for quite a while.
In some cases they may place you with an individual counselor who will work with you until your wife is ready to attend sessions. When your wife is ready to attend sessions they may place you and your wife with a separate counselor so your wife does not feel set up.
Or they may decide to leave you and your wife with the same counselor. But this is something they will discuss with you on the first session so you will know the plan.
I’m glad you are building a support network. This will be invaluable during the stressful times.
Please be clear that you need them to give you support to rebuild you marriage.
It needs to be noted if you are not clear about this…they may believe their role is to give you emotional support. To them, emotional support might be to encourage you to divorce. So you need to be clear about what you need from them.
I think you are taking very positive steps. Good luck!