I found that there are many diff Vaisnava groups.. I'm having a difficult time looking them up..
I know of these as titles of diff groups but no info about these groups individualy..
Rudra Sampradaya,
Brahma Sampradaya,
Lakshmi Sampradaya,
KumaraVaikhanasa Sampradaya,
International Society for Krishna Consciousness,
Sri Krishna Chaitanya Mission Sampradaya
Of course I can find ISKCON no problem but the others I cannot find much on.