There are 3 repositories under person-following-robot topic.
Monocular camera-based person tracking and identification ROS framework for person following robots
Algorithm for user tracking and following (turtle bot control)
Person Following Robot - Smart Trolley
ROS2 package to follow a person
Convolutional Channel Features + Online boosting-based person identification for mobile robots
jetson nano and SSD(single shot detector)based object detection and following diff-drive bot