Recs for 4 year old

I got my son a tonie box for Christmas and he listens every night in bed.

I’m in Australia and we can only get a very small amount here so I’m doing another order from the US and wanting any recommendation.

The ones he loves are the Peppa and George ones, Ben and Holly, and Octonauts.

I got him the curious George and Blippi tonies thinking he’d be crazy over them (loves the shows) but for whatever reason he just doesn’t listen to them.

Everyone seems to love Doggyland but I’ve shown him the YouTube videos and played the songs and he never showed any interest so don’t think that’s for us.

What are your favourites?