Gianiji is Panth Rattan. There are only three people I can think who can give guide to the young generation Prof. Darshan Singh, Veer Jasbir Singh Khannawaleh and cassetes of Gian Sant Singh Maskin. Most of the other I have found are donghi. They have no interest in sikhi but in pocketing money.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/sikh-personalities/25375-gyani-sant-singh-ji-maskeen.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=25375
Regards Sahni Mohinder