Based on this product's specifications, here are some alternatives and similar models
Wozinsky waterproof electric scooter handlebar bag 2L black WSB3BK — handlebar accessory for scooters and e-bikes
Summary description:
Compact waterproof handlebar bag by Wozinsky, model WSB3BK, with 2-liter capacity in black. Designed to attach to handlebars of electric scooters, e-bikes and similar urban vehicles, it protects small items from rain and splashes. Features a low-profile design for easy access to essentials such as phone, keys, wallet or tools during commutes and short trips.