Is there a fun way to teach Korean to my 7-year-old younger sibling?

My younger sibling is interested in learning Korean, so I'm planning to study together with them. However, the Korean learning materials I use are suitable for me as a beginner, but they seem too difficult or fast-paced for my sibling. Therefore, I'm looking for ways to keep my sibling engaged and make learning enjoyable. Are there any YouTube channels or apps that can help a 7-year-old learn Korean in a fun way? It would be great to have resources that teach Korean through songs or games that kids would enjoy. If you have any recommendations or learning methods used by children in various regions, please share. I would appreciate any advice to help my sibling learn Korean joyfully and effectively!