I love Luna Sea! Unfortunately I've been out of the Visual Kei loop for a few years and am not sure what the latest hot thing is, but some older acts that I also really enjoy are
Kagrra &
Lareine. Lareine is actually possible to find domestically, too.
Aliene Ma'riage is good if you want something more metal but still visual.
Guniw Tools is cool if you want something more industrial, though their music is hit or miss for me. If you want something harder, the late great
Guitar Wolf rocks beyond rock. I'd also like to plug
Sawdust in Me, possibly the best band in the world right now, IMO! ^-^\m/ And if you're willing to look into mainstream JPop I think
the Brilliant Green are good. There, that's a lot of variety. ^_^
The only link I have is for Sawdust, but google can help with the others ...
www.sawdustinme.com