Suggestion Required for Best AI Courses

Hello this is Gulshan Negi
I am a Software Developer. As a Software Developer I want to expand my knowledge of AI and machine learning to stay current with industry developments and gain new skills. Can anyone recommend comprehensive and practical AI courses that would be a good fit for someone with my background? If there are any free or low-cost options available that still provide high-quality education and resources, that would be a plus. Thank you in advance for any suggestions.
Thanks

There are also some good machine learning courses here:

https://www.codecademy.com/catalog/subject/machine-learning

Hello and thanks a lot for your kind response. Well, I am taking intermediate machine learning course at codecademy.
Thanks