Shingeki no Kyojin, Houseki no Kuni Recommendations
I would rather not spoil all of Attack on Titan but these shows can be strikingly similar when looked at closely. The enemies in Attack on Titan (the the titans) hold an unusual likeness to Houseki no Kuni's Lunarians. While at the same time both shows display similar themes of wanting to change, grow stronger, etc. Both protagonists seek out the truth of the unusual circumstances they live in.