Best cheap/free HLG to 709 LUT or process?

[binto]

I'm using the pointecc color space conversion LUT and can recommend it. It only converts the gamut from the Bt2020 to the Rec709 color space without intervening with the gamma. It corrects the greenish color shift of HLG footage in Rec709 - I find it difficult to do that by hand, so I use this LUT as a basis and start my own color correction from there.

https://cc-lut.hotglue.me

[Taranis]

You might want to check out this pack: Fujifilm Film Simulation LUTs for Panasonic V-Log L & HLG
This is my own stuff, I created these LUTs by measuring more than 10000 color patches per profile, and I used my own color conversion engine to build 3D LUTs from these measurements.