I am glad to know about your interest in markets and it drove you to research courses in the market.

To my knowledge, you can look for these below courses (all the mentioned ones are short term and affordable );
Udemy- Stock market learning from scratch for beginners and many more.
NSE BSE site- certificate Course in Stock Market is available that opens career options for the candidates. You can explore the courses to learn about effective stock trading techniques, pros, and cons of the stock market, working of NSE, BSE, NISM, NCFM.
NIFM- It is a known institute for training on the stock market trading course offered by Indian stock exchange NSE, SEBI, BSE, NCFM & NISM online certification exam.

For your further guidance on best books for share market, you can read the answer in the below link: