The Wretched Bestiary, by ML Straus is now available at The Red Room store, Giant Slayer Games and Big Geek Emporium. In spite of the Wretched prefix this 314-page book was designed to be used in any OSR game. Sure, it has a fair amount of Wretched supernatural and alien monstrosities, but you will also find in it dragons, orcs, goblins, undead, giants, trolls (and slime, of course). With a stunning (perhaps even brave) cover by Jae Tanaka complemented by the interior illustrations of Jeremy Hart, bringing to life both the wretched and the classic denizens of fantasy realms.
https://moordereht.com/product/wretched-bestiary