The Monsters Know What They're Doing 2 (moar)     Dungeons And Dragons (no source link)
Angry Golem (web)     D&D 5e original/official source
Untamed Wilds     D&D 5e original/official source
Critter Compendium     D&D 5e original/official source
Monster Monday (web)     D&D 5e original/official source