Building & World Editing Plugins · Plugin · by IntellectualSites
A WorldEdit-compatible plugin built for very large edits, applying changes off the main thread so the server does not freeze.
Paper · Spigot · Purpur · +1MC 26.3 · 26.2
Open source
Plugin
An in-game map editor: selections, copy and paste, brushes and schematics for creative building and staff repairs.
WorldEdit is a Minecraft building and world editing plugin for Paper, Spigot, Folia, Bukkit, Fabric and Forge, listed under Building & World Editing Plugins. It lists support for Minecraft 26.3 and 26.2. It is free.
From the source listing
WorldEdit lets a builder select an area and edit it with commands: fill, replace, copy, paste, rotate and save as a schematic. Brushes and scripting extend it. It runs on Paper, Spigot and Folia and on Fabric, Forge and NeoForge. It is maintained by EngineHub under the GPL.
From the source listing
Same category
Most recently approved first. This is not a recommendation or a ranking.
Building & World Editing Plugins · Plugin · by IntellectualSites
A WorldEdit-compatible plugin built for very large edits, applying changes off the main thread so the server does not freeze.
Paper · Spigot · Purpur · +1MC 26.3 · 26.2
Open source

Lobby Display Plugins · Plugin · by zArrowTan
A ready server lobby on a tropical jungle build: server selector NPCs with live player counts, leaderboards, crates, 14 chat tags and a hex-styled TAB and scoreboard.
Paper · BungeeCord

Lobby Display Plugins · Plugin · by zArrowTan
A hub and lobby server setup, built natively for Minecraft 1.21.11 (version 8.0 on BuiltByBit).
Minecraft 1.21.11