For Scarborough specifically, earlier this month the town held a public candidates forum for the town council, school board, and sanitary district seats. The recording of that is here: https://www.youtube.com/watch?v=nLUeEZsNU7E.

edit to add that I found that by going to the Scarborough town website and finding the Elections section, here: https://www.scarboroughmaine.org/departments/town-clerk/elections