I've been doing Godot development with my 9yo and he loves it. If you're looking for something with less emphasis on text based programming Construct and GDevelop are engines I've heard good things about as a continuation from Scratch.
To add to this I found these tutorials good starting points for a structured lesson with my kids. Would do about 30m-1h a day (mostly up to whenever they get bored). When we started off we'd focus on letting them run the GUI changes and I'd work on the code and explain the concepts to them until they started wanting to do the coding themselves.
After that my son wanted to switch to making his own game so we've been re-implementing boss fights from cuphead and lately he wants to make an idle game.
I've also found its fun to just get them to be part of the design process in game jams. It's really great to see the creative ideas that come out of young kids and game making with kids has been super fun and educational.
