Use the panels above to narrow your search according to various criteria.
When the results appear, "Scope Size" is a rough-and-ready, unscientific guide to the usual brightness of the variable. Bright means that a small telescope (say of 8" aperture or below) is suitable for following all or most of the star's variations. Medium needs apertures of around 12" while Faint stars will need apertures in excess of that to follow the majority of the variations.
Of course, there are other factors that cannot be planned for, such as your local conditions, state of optics, and so on. That's why I took a rough guide to be best, just to give a ball-park impression when planning your programme.
Programme Status indicates whether or not a star is a long-term fixture on the AAVSO list; stars like T Tauri for instance.