Yes, Father Roman is quite known in North America to be an amazing
Confessor. He has survived the communist regime of Romania.
Regarding the disciples of the Holy Elder Saint Joseph the Hesychast, only Elder Ephraim of Arizona is alive. Elder Joseph of Vatopaedion fell asleep I think in 1999 or 2000. Another Disciple of Holy Elder Joseph the Hesychast was Elder Haralambus of Saint Dionysius Monastery of Mount Athos, whom has fallen asleep in 2001 on Saint Basil's day. (Old Style) (14/1 January)
There are many holy Elders alive in Greece, and here in America.
If you really want to find a good spiritual father, it's a matter of searching with your heart and not with what people say.