TRIGON and RAVEN (1982)
art by George Pérez
from Michael L

TRIGON (Sep 2016)
art by George Pérez at DRAGON*CON 2016
from D D

TRIGON (Aug 2017)
art by George Perez
from Michael Lovitz

TRIGON (Sep 2016)
art by George Perez at JORNADAS DEL COMIC XXI 2016
from Luis López

RAVEN vs TRIGON (Aug 2016)
art by George Perez

TRIGON (2015)
art by George Pérez
from plastic_memories

TRIGON (2014)
art by George Pérez
from Brian Morris

RAVEN AND TRIGON (May 2013)
art by George Pérez at COMICPALOOZA 2013
from Alex Johnson

TRIGON (Jan 85), art by George Perez and Romeo Tanghal, published in NEW TEEN TITANS #4 (vol 3)

TRIGON (Feb 87), art by George Perez, published in WHO'S WHO #24

TRIGON, ANTI-MONITOR, THANOS, DARKSEID, APOCALYPSE, and MAESTRO published in MODERN MASTERS #2: GEORGE PEREZ