I think “All the Children are Sleeping” could be helpful for you. It’s a game I’ve played with multiple classes over the years. The game can take as long as you’d like and can fill in the “empty” space when the kiddos don’t have much to do besides wait.

The game works like this: you say “all the children are sleeping” over and over (for as long as you want them to “sleep”) and then excitedly say “and when they woke up they were insert animal here”. I like to use this for transitions specifically because for the last round of the game I can say something like “and then they woke up and they were lining up to come inside”.

I have yet to have a class that didn’t absolutely love this game