So I made an Encounter Builder and Monster Index | EN World Tabletop RPG News & Reviews
GitHub - Rob-Welch/pathfinder-encounter-maker: Generate balanced pathfinder encounters based on the number of players, their level, number of monsters and the desired encounter difficulty.
Generate Random Encounters and Treasure for D&D 5e for iPhone/iPad and Android | Nations Software
FlexTale Encounter Generator GM Toolkit: Pathfinder/5E/OSRIC by J. Evans Payne — Kickstarter
Encounter Builder at pf2easy.com : r/Pathfinder2e
Tenkar's Tavern: Deal of the Day - Random Terrain and Encounter Generator