I don't remember the names of most, but I'm pretty sure most cartoons I watched in Spain as a kid in the 90s were amazing and still would be. Most were Spanish, South American or even Galician productions, and were aired on public TV, which I think makes a difference in this case.
Any Xabarín Club members on Era? That was the best show ever. It aired on Galician public TV, and they'd hire local bands to make songs and videoclips that they'd air between cartoons. Most local bands played punk rock at the time, so the songs were, yes, for kids, but always rad, and the videoclips were super trippy and fucked up in a good way, like one about a guy trapped in his washing machine. I also remember one about a woman's right to kick your ass if try to do shit without her consent. In college and in my twenties, every time we throw a party, near the end when everyone is hammered we always play this songs (they made dozens of them) and it's awesome that everyone still remembers the lyrics because they are arguably cool songs even nowadays. Also, if you were a club member, they'd show your picture for a few seconds on TV on your birthday. Not being on TV on your birthday for a Galician kid was like not having internet nowadays lol
I could talk about that show all day, it was so good! Also, they played a lot of anime, and as the afternoon went on, the shows would aim for older kids. The last show was always Dragon Ball. They also had like a news segment were they'd explain news in a way that kids would understand them, but always cool and positive news like space missions and stuff like that.
I consider myself incredibly lucky to have grown up with such good quality TV, I honestly believe it had a great impact in my life. I think what made it so great is that they didn't treat us like idiots for being kids, they understood that, while we'd watch anything, we'd appreciate good quality content. The people behind Xabarín did the best possible job with very limited resources.
"Somos do clube da galega,
Por fuciños, por cachorras!".
Here is a playlist with most of the videoclips, Skip the cartoon ones and see for yourself the music 6 years old Galician children listened to in the 90s, I can't believe we didn't conquer the world afterwards:
https://www.youtube.com/playlist?list=PL5523089DB6467279
I have friends from other regions of Spain who'd tune in and watch it even though all the content was in Galician instead of Spanish lol