I shall go first.
1. The Amazing World of Gumball (fantastic plot, very good story-telling, excellent moral lesson)
2. Courage the Cowardly Dog (retelling of the dark cruelty of the world in the form of creepy caricatures of human)
3. Gravity Falls (UNCLE STAN like come on!)
notable mentions : Slugterra, Kick Buttowski, Numb Chucks
1. Steven Universe (until mom blamed it for all my mental problems and my being queer, forbidding it).
2. Dragon Prince (until mom blamed it for being too distracting and getting my head too lost in the clouds, forbidding it)
3. The Owl House (Same as Steven Universe, plus “too grim”. Inspired my first forays into art until those too were forbidden).
4. All X-Men animated shows, from the oldest to the most recent (I got to enjoy them before my relationship with mom deteriorated and could ruin them too)
5. Troll hunters (according to mom, too “fantasy” for my brain to handle)
Ultimately, most of the shows that were out of this world for me as a kid are ruined by mom for me as an adult.
Also, yeah. Slugterra was great.