Here is a set of robotic arms made with researchers and educators in mind. The Interbotix X-Series Robotic Arms offer support for ROS (Melodic, Noetic, Galactic), Moveit, Gazebo and MATLAB. They are available in 4,5, and 6 degrees of freedom versions. They have payload capacity from 50 to 750g.
These robotic arms are ready for machine learning, artificial intelligence, and pick/place applications. With the vision kit, you can add vision processing to these arms.