There are several excellent online platforms where you can learn photography. Here are some popular options:

1. **Udemy**: Udemy offers a wide range of photography courses, both for beginners and advanced learners. The platform has numerous courses covering various genres of photography, including landscape, portrait, wildlife, and more.

1. **Coursera**: Coursera partners with renowned universities and institutions to provide high-quality photography courses. You can find courses taught by professional photographers and instructors that cover both technical skills and artistic aspects of photography.

1. **Lynda/LinkedIn Learning**: Now known as LinkedIn Learning, this platform offers a vast library of video courses on photography. They cover a wide range of topics, from beginner basics to advanced techniques, and are taught by industry professionals.

1. **KelbyOne**: KelbyOne is a popular online photography training platform. It offers a vast library of video courses, tutorials, and live webcasts on various aspects of photography, including lighting, composition, post-processing, and more.

1. **Phlearn**: Phlearn specializes in teaching photography and Photoshop techniques. They provide comprehensive tutorials, courses, and resources for photographers of all skill levels.

1. **CreativeLive**: CreativeLive offers live and pre-recorded photography classes taught by industry professionals. They cover a wide range of topics, including camera fundamentals, lighting, post-processing, and business aspects of photography.

1. **YouTube**: YouTube is a fantastic free resource for learning photography. Many professional photographers and educators share their knowledge and tutorials on their channels, covering a broad range of topics. Some popular channels include B&H Photo, Tony & Chelsea Northrup, and The Art of Photography.

Remember to practice regularly, experiment with different techniques, and engage with online photography communities and forums to further enhance your skills.