I'm a STM who had a wonderful home birth with MWs the first time. Now we are having a hospital birth with MWs for our second (moved overseas and they won't allow me to have HB).
First, I would check out the hospital your OB delivers at and see if it is med-free friendly. Ask a few more questions from your OB on when she normally attends the birth - is she just called in for the pushing stage? If so you'll probably want to know more about the hospital protocol for monitoring and how involved the nurses are for laboring.
We did the hospital tour in our new home country and found that it was very med-free friendly. My DH was a rock last time so we're not bothering with a doula this time.
Our doula was AMAZING last time but the doulas on our little island are few and far between and, IMO, not as experienced as I would like (our doula for DS was a 20 yr career doula).
Like PP I would suggest a doula but I would also look into the hospital more.