My Homebrew:

(Yugoloths in Pathfinder) Book of the Damned Dreadful Sellswords

(Celestials of Arcadia) Chronicle of the Righteous Demigods of Arcadia

(Obyrith in Pathfinder) Book of the Damned - Lost Princes of the Abyss

(Halo for Pathfinder, part 1) Worldnomicon - Machines of the Ancients

(Fate/) Fate - Beings of the Grand Order