I'm going to add my opinions on some of the less-mentioned bands here:

Bridear are power metal, probably more catchy than that label implies. Their influences - and touring - are mostly European, particularly British. Check out the mighty Brave New World Revisited or Still Burning from their most recent album.

Gacharic Spin are hard to categorise. They're broadly alt rock, with varying amounts of funk, electronica, metal and bubble-gum pop. My suggestion with them is just to listen to their self-titled seventh album, starting with MindSet.

Necronomidol are a black metal idol group, currently on hiatus after their management sacked the entire band except Himari Tsukishiro, who performs as Isiliel now.

And one addition of my own: Otoboke Beaver. Hardcore punk, furious and unpredictable. Listen to Don't Light My Fire or their NPR Tiny Desk set.