Based on this product's specifications, here are some alternatives and similar models
Roborock dock board accessory for S7, S7 MaxV, S7+, O15, Q7, S8 – vacuum cleaner docking mat
Summary description:
Dock board accessory compatible with Roborock S7 series and select models (S7, S7 MaxV, S7+, O15, Q7, S8). Designed to be placed under the robot’s docking station to protect floors, stabilize the charger and collect minor spills or debris. Easy to install and remove, it helps maintain a clean charging area and reduces wear on flooring around the dock.