Courses are open at:
City of Glasgow College
https://www.cityofglasgowcollege.ac.uk/studying-city/january-start-courses
Glasgow Clyde College
https://www.glasgowclyde.ac.uk/january
West College
West have some November start courses full time until June.
https://www.westcollegescotland.ac.uk/courses/autumnwinter-2021/
There is a glitch with their January start courses on website and should appear on Monday.