 If you liked
Senki Zesshou Symphogear
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 ...then you might like
Vivy: Fluorite Eye's Song
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Both anime took place in future where, Our mc, Are just "normal" girls who live changed they get some powers which those two use to fight againts bad guys. Both anime are Idol anime which also combine action & sci-fi genre. I recommend both if you enjoy action with lots of singing