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You always want to start with a "clean" image. Fix white balance, exposure, etc. before any color grading.
The color grading adjustments are the best option to add the orange and teal look.
Select shadows and set Hue to 190 and Saturation to 100. You can reduce Saturation for a more subtle look.
Select highlights and set Hue to 35 and Saturation to 100. You can reduce Saturation for a more subtle look.
Set Blending to 35 for a more natural look. You can experiment to see what you like the best here.
For a more extreme color grade. Go to Calibration tab and adjust the Blue Primary Hue to the left for the look you want.
Click below to check out my Signature Preset Collection with 89 color grading and workflow presets.