We're glad to know you wish to take courses on Udemy. However, please note this community is for instructors who wish to publish their courses, ask for advice related course creation, and just share experiences regarding their teaching on our platform.
You can visit udemy.com to search for the course you are interested in taking. This article will also help https://support.udemy.com/hc/en-us/articles/115012244007-How-to-Search-for-Courses-on-Udemy-
Thanks for understanding!