I spent a while trying to understand the differences/similarities between the various (non-encoding) methods. Eventually I decided this makes sense as an easy visual.
I realize I am reinventing the wheel - I see many people that have already worked on mnemonic classification (from which I liberally borrowed). I also realize that there is infinite nuance present, links can branch, etc; Additionally, this image contains overlapping categories (indexed pegs are chained anyway), and there are other problems. However, despite all the deficiencies, if I just saw this image in the beginning of reading the forums, I think it would have helped me not get as lost/confused. So I leave it here in case it helps someone else.
some related posts
How many memory methods are there in total?
Help to formally update mnemonic classification and nomenclature.
Peg system vs memory palace difference
Chain method, link method, story method - is it the same thing?