Creative theme ideas for engaging online courses in Vyond and Articulate

Hi everyone, I am currently building an online course in Vyond and Articulate for staff and am looking for fun and engaging ideas to present the information in a “theme”. I have seen examples in the past of information being presented in a game show format. Or a journey where they have to visit each destination and then get a stamp in their passport once they have completed that section. I have also seen a “superhero” theme. Just looking for ideas on how to tie the information all together while still making it fun and engaging. Would love to hear any ideas you may have!