This mod allows you to have up to 100 followers in Skyrim at once. And you can also command all your followers as a group. ASC is the cleanest and easiest mod out there for multiple followers in Skyrim. I recommend starting your game before installing the mod and making sure you have no followers following you. That can cause issues, but usually it will be fine. when you recruit your first follower you should be able to go and recruit another one without a any issues.
If you have problems with this mod reinstall it and load to a clean save or clean your save with TES5EDIT.
Original URL: https://www.nexusmods.com/skyrim/mods/99508