Many inexpensive telescopes are perched on mounts so wobbly that you will have trouble pointing them at a planet or star cluster. Good mounts are heavy. Gravity plants them firmly to the ground. Some mounts, called equatorials, will follow an astronomical object across the sky. They are only effective if they are solid enough to keep the object in view.
Dobsonian mounts are well suited for visual observing of the stars and planets.
Because they don't have the fancy motors, you'll have to push the telescope yourself. The smallest Dobsonians have mirrors six inches wide. Because of their large aperture, they give glorious views of the universe. And now, the bad news. Finding a supplier is probably the hardest part of the process.