David Goldsmith

The book "Photoshop LAB Color: The Canyon Conundrum and Other Adventures in the Most Powerful Colorspace" is well worth a read to get into using Lab. It's aimed at photoshop but that doesn't get in the way. https://www.amazon.com/Photoshop-LAB-Color-Adventures-Colorspace/ I use Lab a lot for sharpening, denoising, colour contrast and find it extremely useful when working with poorly exposed drone footage. The Basegrade operator in Baselight is based on a proprietary variant of Lab tweaked to suit white balancing and HDR/Wide gamut. In Resolve it's easy to have a play with the curves in Lab mode, you can also use it along with printer points to act like exposure/tint/white balance. If you like working with LGG it's a little more fiddly but you can set a node in Lab to just the first channel to adjust contrast and another node to the second 2 to have a grading experience a little like Rank.