This repository has a shiny app to help finding issues on the R issue tracker needing attention.
It uses a database dump of all bugs to provide the webpage for anyone that wants to help the R core maintaining the R language and answering, confirming and fixing bug reports (or wishlist).
It builds on this report of bugs using the same database dump.
If you want the current state of the database you can use bugRzilla package to query it or use the website to search.
More info on this issue. Suggestions, or simply explaining how you search for bugs to participate, or how you use the app are appreciated.
Some materials used to build the website for my own reference: