Usually such bodies are found at special points in a system of two massive bodies revolving around a common center of mass – Lagrange points.
Saturn has two more satellites in orbit around Tethys: Telesto and Calypso, in orbit of Dione-1980 S6. Two groups of minor planets are orbiting Jupiter. 10 asteroids (“Greeks”) move ahead of Jupiter in its orbit and 5 asteroids (“Trojans”) – behind it.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.