The entry on the voynich days have a lot of the most recent information and research. The past two years were great as they had a lot of research about the way the text behaves( loops , line as a function etc) Lisa Fagin Davis scribe work and the naibbe cipher. YouTube has the videos.
I particularly love the research Tavie does on the text features and Patrick Feaster’s loops, but there are many incredible researchers.
The 2022 Voynich conference is also great.
Also René is the glue that holds a lot of this together- his site will have latest info. But the work is slow and hard won.
Enjoy the rabbit holes
Annah/Anya