Hi, Logan, and welcome to the boards.  Sorry you have to be here.  I am new here myself but have a long history of depressive episodes in myself and chronic depression in my husband of 25 years.

Only you and your wifwife will be able to decide on your best course of action, ultimately.  Maybe a summary of my experiences will help you gain perspective on your own.

I finally realized I needed help during my first depressive episode 15 years ago.  I was very anti-med and sought (and received) excellent counselling.  I had a "quick recovery" then a setback as I realized I really had not fully plumbed the depths of my emotional state.  Then I spent several years in a good place until a traumatic breakup with my mother sent me into a tailspin.  I sought a new counsellor and decided right away to try meds.  When they kicked in I felt so.....normal.....that I regretted waiting so long.  I can look back now and see underlying mild depression for a long time.

After a year and a half on the meds and intensive counselling I got off the meds and felt great.  Then we had a fast, unexpected move out of state and I had a major setback.  Restarted my meds, had some med changes, back into counselling with who is now my current counsellor.  

With the exception of an emotional crisis with my husband I have been pretty stable for the last couple of months.  

So that is my experience.  What I hope you took from that is that counselling may be all she needs.  She may also need meds.  Since you are both open to the idea my suggestion would be tofind a counsellor experienced with treating depression, have her spend a session or two and openly discuss the question of whether meds seem warranted.  From there if you two decide to proceed make an appointment with your family doctor or a psychiatrist.

Likewise it is completely legitimate to make an appointment with the psychiatrist first then a counsellor.

Best wishes,  the two of you have a huge advantage in that she is open to treatment.