One-commands generator for Minecraft 1.12 [Tutorial included] - YouTube
TOOL] Player Head /Give Command Generator! Minecraft Mod
Gamer Geeks - New Minecraft Tool Time! /Team Command Generator https://buff.ly/3kkUskj It should help with typing all those commands, just enter team name and display name and you're good to go! Also
Fill Command Generator (Java Edition 1.12)
Summon Mob Command Generator Minecraft Mod
Default World Generator (port) - Mods - Minecraft - CurseForge