Yes, they are relatively common and quite popular but there's not so many choices as there are with spring bloomers and they tend to be not quite so noticeable, given the profusion of other fall interest plants and foliage :-) Although a well-established clump of colchicums in full fall bloom is pretty hard to miss!

The standards are the 3 C's - Colchicum, Crocus sativa (saffron crocus) and hardy cyclamen. Hardy and easy to grow in most of the country if given the right conditions. You can typically find them available in late summer or sometimes in spring by mail order.

But there are others - nerines (my favorites!), lycoris, sternbergia, some species of zephyranthes and a few other species of crocus. Some will not be winter hardy everywhere and will need some protection. Most of these will be available through specialty bulb suppliers.

Thanks, I will google the ones I am unfamiliar with.

Sternbergia Lutea is an old southern favorite beloved by the famous southern garden writer Elizabeth Lawrence. They look wonderful popping up from under low groundcovers and do better in the south then the more common Colchiums. They fell out of favor for years but now they are available from a few bulb catalogs.....Lycoris Radiata (Red Spider Lilies)are also an easy to grow early fall blooming bulbs. If they like the spot they are planted in they multiply with abandon.
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Here is a link that might be useful: Sternbergia