Ask HN: Which progcourse would you recommend for paid certificate of completion?

I am currently more using edX, Pluralsight, Coursera, LinkedInLearning, FreeCodeCamp, MIT OpenCourseware courses on CS and Python (C/C++, ML, data analysis, web dev) to audit courses for free. Have not yet tried Codecademy, Udemy (any else?) online learning platforms.

Which platform/course would you recommend to get a paid certificate of completion?