This is a combination of two Telescop Live datasets - one LRGB and the other in SHO that were just acquired by the AUS-2 telescope last month.

Approximately 10 hrs of total integration (5 hrs in each dataset), I chose to combine the two because there is a combination of reflective and emission nebula within this FoV.

I have not done a full Narrow Band and full Broadband dataset combination and couldn't recall ever seeing this mentioned in processing videos that I have watched although there are many YT videos of algorithm's for combining a Lum channel into Narrowband data or an Ha channel into broadband data.

I processed each data set separately and used the RGB dataset for the creation of the RGB stars.  SPPC was used to color correct the RGB and SHO datasets.  However, at least in this version, I chose the NB Foraxx version to progress forward with since it was closest to the palate of the RGB dataset and required the least amount of work to blend final product with the final RGB dataset.  

Once the color correction complete and BXT applied, all subsequent processing was on the starless versions of the two palettes. 

I used a very simple PixelMath addition with each dataset image applied with a simple factor that resulted in a 50/50 blend of the two starless images (RGB and Foraxx).  I cropped the final image slightly to place the two primary Messier objects front and center in the frame   I couldn't really foresee how the color blend would work and it turned a bet toward the salmon side on the red spectrum.  .  I may go back and see what I can do to modify that result, but it still is a good result, IMO.

Our perspective on this object is closer to the center of the Milky Way than many other targets, so the starfield is very rich/dense.  Most of what appears to be nebula clouds are dense star fields in reality.

Please enjoy and let me know what you think.

Update:
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In version 2, I decided to experiment with using the NB image as both a mask and as additive to the broad band image.  That appears to have worked quite well in taming a bit of the 'bloom' that the NB image was causing and retained some of the subtle detail in the bright  core of M8 and in the dark structures there and in M20.  The differences are not extravagant, but they are noticeable when inspecting/comparing the two version.

I hope you enjoy, let me know what you think!
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From Wikipedia:
The Lagoon Nebula (catalogued as Messier 8 or M8, NGC 6523, Sharpless 25, RCW 146, and Gum 72) is a giant interstellar cloud in the constellationSagittarius. It is classified as an emission nebula and as an H II region.

The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region in the north-west of Sagittarius in a star-forming region in the Milky Way'sScutum-Centaurus Arm. It was discovered by Charles Messier on June 5, 1764. Its name means 'three-lobe'. The object is an unusual combination of an open cluster of stars, an emission nebula (a relatively dense, red-yellow portion), a reflection nebula (the mainly NNE blue portion), and a dark nebula (the apparent 'gaps' in the former that cause the trifurcated appearance also designated Barnard 85).

Both objects are approximately 4100ly from Earth, in the Sagittarius Constellation.  Both objects are homes to very active star formation with new observations from Hubble and sources confirming the existence of new star structures.

More detailed information can be found here:
Lagoon Nebula - Wikipedia

Trifid Nebula - Wikipedia