Well, at the end of this month (November 2017), it will be a year-and-a-half in to DC's Rebirth branding of DC's main universe.
How many of the Rebirth titles (not issues, since some of them are twice-a-month books) are you buying at this point in time?
(NOTE: We're not talking about non-Rebirth lines/imprints like Young Animal, Vertigo, the all-ages books or other Hanna-Barbera books including things like Looney Tunes and Scooby Apocalypse, etc. Just titles that have been branded with the Rebirth banner on the regular covers.)