I’m by no means an expert although I have implemented a parser combinator library, Ergo, (partly because I didn’t gel with the dominant libraries in Elixir, and partly as a learning exercise) which I have used to build a number of reasonably complex parsers, including the parsers for the Rez language, Mangle assembly language, and DemoGen.
I’m happy to share what I know. My opening gambit would be either an open Zoom call (I pay for Zoom so can host) or something on the IF Discord.
Open to alternative approaches/venues and happy to share the floor with anyone else who has a perspective they want to share. E.g. I would appreciate hearing about PEG parsing as it’s not something I’ve used for over a decade and I’m rusty.