Branch Administrators, DPSs, BOMs, and Superusers have "site manager" access in Forcura, which allows them to create new users. See this Forcura-made guide for details: Adding and managing users in Forcura
Here's a video (about an hour and 20 minutes) from June 2021 that Forcura provided for a new branch as an intro to Forcura: Intro to Forcura training video