Hi there
I have just joined The Project Patterns course/online membership that could definately be a good option for you:
project-patterns.co.uk It's run by Kate Roberts who is a pattern cutter herself. She's @projectpatterns on insta etc
I found out about her through one of the only pattern cutting podcasts I could find:
fashionhalfcut.fashion.blog (finished in 2021 I think, but lots of great info if you want to binge listen to all things patterncutting related!).
I've also just finished a couple of in-person courses (Fashion & Textiles level 1&2: Pattern cutting) based in Plymouth: cityplym.ac.uk/courses/fashion-and-textiles/
-although I think this sort of course in available in other areas, the awarding body is skillsandeducationgroupawards.co.uk/qualifications/
-but I can't seem to work out where the other courses are based from this site: its just a run down of the different levels of courses the awarding body do . I did email them to ask about where any level 3 Fashion & Textiles (pattern cutting) courses were, and they wrote back, so its worth emailing...
Hope that helps x