This seems very interesting, would love to see more alternatives to TreeSitter and microsoft LSP - what makes those hard to use is lack of examples and tutorial

This seems very interesting, would love to see more alternatives to TreeSitter and microsoft LSP - what makes those hard to use is lack of examples and tutorials. So I hope tbere will be examples and tutorials. For example: How do you find all variables in scope when the text cursor is on line x and col y in /file/path/file.js