New problems require new solutions. It's great that you share these things. Many companies design their space tugs and other similar vehicles to correct satellite orbits, as well as to remove them from orbit after their service life. If we look at the plans for satellite launches in the next few years, we will see several thousand new satellites that will require such "maintenance".
These gizmos are developed by many private companies, as well as ESA, NASA, etc.
For small satellites, I liked the compact
space tug from Skyrora. Check it out.