An excellent collection of interviews with people experiencing OCD and experts (and best of all, a handful of experts who have experienced OCD). The host has OCD and also works as a therapist.

https://theocdstories.com/category/podcast/

This is not an exhaustive list, but it is a good starting point. There is only one ‘type’ of OCD, but these ‘types of OCD’ lists can be useful for identifying OCD, and also for validating that, yes, it is OCD.

https://www.ocduk.org/ocd/types/

In my opinion, Michael Greenberg is on the cutting-edge of OCD theory and treatment. His articles are remarkably clear and precise, and he describes the Rumination-Focused ERP approach in great detail. In my work I do not typically focus on the “core fear” idea that he promotes.

https://drmichaeljgreenberg.com/articles/