Context: a mobile app for project management where the user at any given time has one active project. Think Slack/Discord/GitHub. Each project has some per-project navigation, in the form of a top tab bar with tasks, people, reports, and other list of items that belong to the project.
The question is how to design a switcher for the active project. On Android I would use a hamburger menu with a drawer listing the projects. On iOS this is discouraged. What are other good alternatives to switch the user's context? A bottom bar is good for switching between "functionality" (e.g. feed, messaging).