Service or repository of SHACL rules available? (like LOV or prefix.cc)

Hello,

does anyone know a service (e.g. LOV or prefix.cc) or repository (e.g. 
on Github) which provides SHACL rules, grouped by target classes?

I would like to search rules by target class, for instance, foaf:Person. 
After getting a list, i would like to download certain ones and use them 
locally. Versioning or collaboration tools would be great too, so that 
the community may contribute to SHACL rules.

Thanks in advance!

-- 
Mit freundlichem Gruß / Kinda regards
Konrad Abicht

Leipzig University
Institute of Computer Science
AKSW Group
http://aksw.org/KonradAbicht.html