Hi I'm currently trying to create npcs on fabric but there is no available commands to properly make my npc, I have had no luck in finding all commands I need. If possible can you guys post all of the commands so that fabric users have an easier time trying to make NPCs

The latest Fabric beta includes a config UI like the Forge version, so not really sure about the request here?

The new commands from the beta version will be documented inside the wiki after the version is stable and released.

What is the command to access to UI? I have not been able to find it and it says we cannot access it with the stick?

The beta version 5.1.x allows to use the NPC wand, shift + click or the config command /easy-npc configure <UUID of the NPC> to open the configuration UI for the NPCs.

See: https://www.curseforge.com/minecraft/mc-mods/easy-npc/files/all?page=1&pageSize=20