There are thousands of these and I would encourage you to do your own searches and look until you find a site where the tutorials and presentation are to your interests.
- PetaPixel: This Free Masterclass Teaches Adobe Lightroom in Just 30 Minutes
- FixThePhoto: Free Lightroom Tutorials
- PhotoTraces: Top Free Lightroom Tutorials for Beginners
- Adobe: Lightroom and Photoshop – Creative Cloud Photography
- Adobe: Edit, organize, store, and share photos from anywhere