  Main Belt Comets (MBCs) exhibit sublimation-driven activity while occupying
asteroid-like orbits in the Main Asteroid Belt. MBCs and candidates show
stronger clustering of their longitudes of perihelion around 15{\deg} than
other objects from the Outer Main Belt (OMB). This potential property of MBCs
could facilitate the discovery of new candidates by observing objects in
similar orbits. We acquired deep r-band images of 534 targeted asteroids using
the INT/WFC between 2018 and 2020. Our sample is comprised of OMB objects
observed near perihelion, with longitudes of perihelion between 0{\deg} and
30{\deg} and orbital parameters similar to knowns MBCs. Our pipeline applied
activity detection methods to 319 of these objects to look for tails or comae,
and we visually inspected the remaining asteroids. Our activity detection
pipeline highlighted a faint anti-solar tail-like feature around 2001 NL19
(279870) observed on 2018 November 07, six months after perihelion. This is
consistent with cometary activity but additional observations of this object
will be needed during its next perihelion to investigate its potential MBC
status. If it is active our survey yields a detection rate of $\sim$1:300,
which is higher than previous similar surveys, supporting the idea of dynamical
clustering of MBCs. If not, it is consistent with previously estimated
abundance rates of MBCs in the OMB (<1:500).
