The below photo is straight out of my converted camera. The only edit was just straighten and crop.
I am not an expert in IR photo but here are my basic steps and I used Affinity:
Channel mixer - on red chanel, red 0; blue 100. Blue channel, red 100; blue 0
Tone Mapping detail then mask
Channel mixed - on red channel - red 140, blue -42; on blue channel - red 6, green 7, blue 98
Play with the HSL
If you wish, add LUT. Play with opacity. Not really that important step
Add glow ...