The Book of Many Eyes

From publisher blurb: This title is a compilation of some Beholders that Dungeons & Dragons have had in the past, but don’t have a 5e version yet. This is the list of beholders found in this title (some of them have variations. there are a total of 24 block stats) . - Astereater - Beholder Mage - Beholder Mage Veteran - Beholder Spawn - Director - Elder Orb - Examiner - Eye of Flame - Eye of Frost - Eye of Shadow - Eye of The Deep - Eyeball - Ghost Beholder - Doomsphere - Gorbel - Gouger - Hive Mother - Kasharin - Lensman - Observer - Orbus - Overseer - Watcher