CineColor ARRI Alexa Classic LUT
Free LUT emulating the classic ARRI Alexa color science.
How to install this in DaVinci Resolve
Go to Project Settings → Color Management → Open LUT Folder, then copy the downloaded .cube file(s) into that folder. Restart DaVinci Resolve, right-click a clip on the Color page, and the LUT will appear under 3D LUTs in the panel on the right.