“SOPRANOS” junkies going through withdrawal can get a quick fix at the off-Broadway revival of Louis LaRusso’s “Lamppost Reunion.” It stars several regulars from the HBO mob series including Vincent Pastore (“Big Pussy”); Frank Pellegrino (“Frank Cubitoso”); Robert Funaro (“Eugene Pontecorvo”); Anthony Ribustello (“Dante Greco”); and Danny Aiello‘s son, Ricky Aiello (“Ray-Ray D’A baldo”). The play, produced by Pas tore and Paul Borghese, debuts Nov. 7 at the Arclight Theatre on West 71st Street.