- Edinburgh Council offer a series of Community Learning courses for adults which are inexpensive and, dependent on circumstances, may even be free. They take place in various schools and community centres across the city and normally run weekly for 2 or 3 months. For up-to-date opportunities have a look at their website-
https://www.joininedinburgh.org/
There are some degrees in poetry at universities in England and Northern Ireland, but in our limited research Scottish universities tended to have poetry as part of wider Literature degree. Here are a few we found. The Open University offers a range of poetry related studies, including this free 12 hour course.