[TACD]

A couple of other comics with their own distinct personalities but an unmistakable C&H vibe:

Cul de Sac (https://www.gocomics.com/culdesac)

Wallace the Brave (https://www.gocomics.com/wallace-the-brave)

[svat]

The comic "Frazz" is also often compared to Calvin and Hobbes (as if Frazz the janitor is an adult Calvin), there's a long section on the Wikipedia page: https://en.wikipedia.org/wiki/Frazz