Udemy is a great platform with millions of students and people learn almost everything here. So, you can teach anything. It would be better if you use Marketing Tool provided by Udemy inside Instructor account (link: https://www.udemy.com/instructor/marketplace-insights/ )
Here, you can type and see the potential of the topic on the platform.
If you do not find it, do not lose hope.
You never know who is interested in Strategic Financial Management.
And if you find a lot of competition then do not think that you cannot get students, your style of
teaching may attract students.
I hope this helps.