Hi @Rtg123uk, welcome to the community! 🙂
@Karansetia made some great suggestions, I'd also like to link our Marketplace Insights tool so you can research your topic's demand and competition, as well as get some insights into what students are looking for, the average conversion rate for courses in this subject, and so much more useful information to help you decide.
Additionally, in the below posts you can learn how to build an audience from other instructors:
Plan Your course Marketing Before You Publish, Here are Proven Marketing Ideas
How to gain potential students before you publish!
If you need help with anything else, please let us know. Good luck!
Bella Almeida
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