The Rebel 2000 can use any Canon EOS EF mount (i.e., full-frame) lens ever made by Canon. It can not physically mount Canon EF-S lenses as these are designed only for digital cameras with smaller APS-C sized sesnors. Other third-party "digital-only" lenses such as Sigma DC and Tamron Di-II will fit on the camera but will cause severe vignetting (dark corners in images). The camera also can not use old manual Canon FD mount lenses from Canon's previous generation of film SLRs.
You can actually find some decent used third-party film-era lenses for film Rebels for great prices because many of these older third-party (Sigma, Tamron, Tokina, etc.) lenses aren't entirely comaptible with Canon DSLRs (Canon tweaked the electrical characteristics for their cameras when they went digital). Honest sellers will often mark these lenses as "film only", "not for digital", etc.
Mines came with 28-80mm Lens which allows me to zoom into objects very clear at 60-70ft away. Further than that still allows for a great shot. I dont know of other compatible lenses but if you can find a better one it would be best.