These are the accessories I have found to be the most useful to me.
I did a lot of research online, bought several models, tested them, kept the most suitable for me and returned the rest.
Case:
SPECIALLY DESIGNED HARD CARRYING CASE FOR META QUEST 3 / QUEST 2 EUCARLOS case is designed for protecting your devices, and enhancing your VR using experience. With interior pockets for storing the charger, charging cable, or other accessories, make your accessories an easy store. Easy to put hea...
www.amazon.com
It's a very compact case, I was able to fit a lot of things in it:
• Vision Pro with it's battery pack and cable (obviously!)
• AC Adapter with USB-C charging cable
• 30000mA Battery Pack
• Foldable keyboard (listed below).
Foldable Keyboard:
iClever IC-BK06 Full-size Bluetooth Foldable keyboard Equipped with full standard-size keys, you can fast adapt to this new keyboard for fluent and comfortable typing experience. Ergonomic Design Specially designed with 166 degrees angle when being unfolded, the keyboard can release wrist, arm an...
www.amazon.com
Battery case:
HAYONLIY Compatible for Apple Vision Pro Battery Soft Case, Silicone Apple Vision Pro Battery Protective Cover, Scratch-Proof and Fall-Proof Protector for Vision Pro Battery Accessories- White
www.amazon.com
I only had to replace that loop ring with a carabiner clip I had floating around.