Support for Redprotect and Worldguard Regions · Issue #84 · BlueMap- Minecraft/BlueMap · GitHub
BlueMap Marker Manager - Minecraft Plugin
Merchant Markers Mod (1.19.3, 1.18.2) - Easily Recognize The Right Traders - 9Minecraft.Net
GitHub - theAspenGrove/BlueMap-Signs: An add-on for the Minecraft mapping plugin BlueMap that aims to add ways for players to create markers by interacting with blocks in-game.
Pl3xMap-Marker | SpigotMC - High Performance Minecraft
Minecraft: How To Make And Use A Map - Gamer Tweak
Maplands | SpigotMC - High Performance Minecraft
The end of the marker, fun while it lasted : r/2b2t
Apparently we can add custom markers on maps : r/Minecraft