[genzer]

Have you tried YouTube Kids? I allow my daughter using only YouTube Kids (in kid mode) on my Android phone. The suggested content was good enough. Google also allowed you to supervise the content [1].

[1]: https://support.google.com/youtubekids/answer/7178746#block_...

[R_VelJohnson]

I tried YouTube Kids, but found it was suggesting a lot of surprise egg and colorful slime videos. I blocked those channels, but more showed up, so I deleted the app.

[seized]

Its only usable (in my opinion) in the allow list channel mode. Otherwise its never ending reaction blocking.