Denver Riddle has done an amazing job putting together a very handy and comprehensive LUT list…
Denver breaks it down and helps you better understand the various LUT’s used with colour grading.
Thanks to Denver you can try these links to learn more about LUTs such as OSIRIS and ImpulZ:
LUTs emulating 35mm film:
Look type LUTs:
For applying LUTs in FCP X:
24 FREE Film LUTs with Express Color $2.99