You might try looking at online manga platforms that offer a wide range of languages. Some popular ones could have it. Check sites like MangaFox or MangaReader.
You might also like 'Rugrats'. It features Angelica's mom, who is a single parent. The show portrays the family dynamics and adventures of the kids with a single parent at the helm.
Well, cartoons like 'Peppa Pig' or 'Dora the Explorer' could be good. They are colorful, have simple stories, and don't have anything too intense or scary.