Hi,
just to give my small contribution, maybe you already know this two site:
https://www.imperial.ac.uk/robotics/research-labs/
https://www.centropiaggio.unipi.it/
Will be hard to find a specific forum ( I suppose only in university labs), but for sure you have a lot of links or person to contact.
Thank you for links and sorry for late replay
To contact directly each research or author seems quite difficult especially when catalog requires only generalized information
Anyway, thank you