Me, @avehtari, @paul.buerkner and Eero Linna has put together the first draft of a posterior database. The idea is to collect posterior distributions (i.e. data and models) and potential gold standard posterior samples in a database for easy access. Now it only contains a few examples, but we hope that if we set the structure and general idea, it can be relatively quick to add new posteriors, models and data. The repository README should contain all necessary information.
All comments are welcomed!
Hopefully, we are also soon done with bayesbenchr an R package that can be used to evaluate different diagnostics and inference methods for the posteriors in the posterior database.