I can go on about all the cartoons I love for a while; Seriously, there's alot. I would say Steven Universe is the only one I actively enjoy, with everything else they regularly air being c*@p. Since you're into more classic-style Cartoon Network shows Mike, I recommend this:
https://www.youtube.com/watch?v=MchGCjJMv3E
I will never not sing this shows praises.
Also, have you ever heard of Young Justice? It too was cancelled, but is now returning.
I still have yet to watch Avatar: The Last Airbender, and Legend of Korra, both of which are universally praised as the greatest cartoon series of the past decade, so there's still that. And yes, I am aware that Young Justice is making a comeback. It was originally canceled because it wasn't selling enough toys. Yeah, because why bother making anything unless it exists to sell merchandise? I hate capitalism so much sometimes.