I don't know such groups but one course that gave me a really solid foundation for knowing a bit of python was
Automate the Boring Stuff with Pyhton by Al Sweigart. He's a really chill dude and knows how to transform the concepts that you need to know in a simple manner.
He usually pumps out a monthly discount at r/learnpython/ which makes his course on
Udemy totally free which is neat!
If you don't find what you're looking for I highly recommend that course (even though I haven't used python in a while, it did helped me when I needed it).