Remotes disappear into seat cushions. Headsets end up across the wheel. A controller sits on the pedal tray until someone knocks it loose. Each problem is small on its own, but together they turn getting into the rig into a cleanup job.
Decide when you need each item
Sort the gear by what you grab during setup, what you might use from the seat and what can stay somewhere else. A display remote you need once at startup can live farther from your elbow than the controller you use to navigate menus. Keep the headset where you can lift it with one hand without catching its cable on a shifter or brake lever.
Test the spot with the gear on it
Hold the holder and the item in the proposed position while someone gets in and out of the rig. Check the widest part of the headset and the bend at the controller's charging connector. Try reaching the spot without looking down for more than a moment. If you need a charging lead there, park it where the connector stays accessible and the cable can't get pinched by the seat slider.
Match the holder to the job. A hook is easy to use for a headband, while a small tray suits objects that don't have a natural hanging point. A dedicated pocket can hold a remote upright if you need its buttons or IR emitter clear. Browse the rig accessory collection once you know the available width, depth and mounting surface. Then sit in the rig again and check whether everything still feels out of the way.