I'm a bit of a case whore (own 7) and these two are my favs:

Spigen most recommend, thin, adequate protection https://www.amazon.com/gp/product/B072N3WT4J/

Ownest - hard shell, padded corners, a bit more protection, a bit thicker, I have 2 diff colors I liked these so much: https://www.amazon.com/gp/product/B07DFMDLMZ/