Evergreen bulb plans?
It sounds like there's several in the Hyacinthaceae and Amaryllidaceae families although I'm not really sure what's what in those. Basically looking for stuff like Ledebourias and Haemanthuses. Or Clivias, maybe.
Also what about those South African Ornithogalum hybrids? Are those everygreen or not? Are they even viable indoors? I see those in stores in the spring but I've never found much info about them. I had a pregnant onion for a few years but it never really did much for me.