 If you liked
Uchuu no Kishi Tekkaman Blade
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 ...then you might like
Gakuen Tokusou Hikaruon
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Both of them are "Henshin Hero" style anime (although Hikaruon is more based on the live action Space Sheriff trilogy and Metal Heroes franchise), i.e. each one has a lead character that transforms (Henshins) with a pose or device and a henshin call. Both also involve the lead character fighting off some sort of monster with their mecha style hero form.