 If you liked
Tengen Toppa Gurren Lagann
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 ...then you might like
Souten Kouro
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Souten Kouro ranks high on the GAR (or "manliness") chart, but Tengen Toppa Gurren Lagann exceeds it. Both are epic tales of men forging their way in a hostile world, though TTGL goes for comedy sometimes and includes more standard anime elements such as fanservice and giant mecha.
If you liked Souten Kouro but wished it was more like a typical anime, give TTGL a spin.