There's a lot of high-paying tech jobs that can be playing into ADHD (and other not neuro typical brains) strengths and focus thats more like running 42 1km "sprints" than mostly consistent pace 42km marathon.

Things that come to mind are data science/analysis, debugging and fixing outages (finalizing follow up RFO might be hardest part ), security/hacking (hopefully white hat)...

And basically whatever else one personally finds interesting to dig into deep and/or wide.