https://www.airlinepilotforums.com/flight-schools-training/125458-multi-training-pa-44-a.html
Read through this thread for some good information. Like I posted in that thread the biggest problem you will have getting one done fast and cheap is all those places are booked out for months usually. Action actually had a waiting list to get on the waiting list a few months back. I think is was October when I talked to them for someone. They said at that point to expect a training date in early spring of 2020.