nelsonic
commented
5 years ago @edwardcodes once you have learned a bit of Davinci Resolve #53 and felt the "bottleneck" of having an "older" (slower) PC for video editing, please consider dedicating a few hours to researching custom-building PCs from components so that we have 4K capable video editing stations. (note: we aren't going to switch to 4K because it's a waste of disk space! but there will be certain situations where we will want to have 4K for videos I'm planning, and having powerful video editing computer(s) is a good idea to not waste time waiting for renders)
Come back to this in the "break" between Christmas and New year. 😉
ghost
Only available on MacBook Pro 2016< and iMac 2017< 
And with 3 different video editing programs: Premier Pro, Final Cut and Resolve.
"The fastest laptop actually got slower with the eGPU" ... baring in mind that was the $3,500 i9 beast!!
This is the best value-for-money portable video editing machine.
It is far more portable than a comparable Mac Pro and since the CPU architecture is far more recent the main "bottleneck" is avoided. 
Editing video requires a decent machine, I find that even editing 1080p on my current mac requires rendering time and exporting videos takes hours. I feel that a high-spec machine is worthwhile investment to save time and reduce frustration.
My first instinct is to buy a 2018 Mac Mini because it's compact and RAM-upgradeable.
https://www.apple.com/shop/buy-mac/mac-mini/3.0ghz-6-core-processor-with-turbo-boost-up-to-4.1ghz-256gb#
https://www.apple.com/uk/shop/buy-mac/mac-mini/3.0ghz-6-core-processor-with-turbo-boost-up-to-4.1ghz-256gb £1,429 which is *$1,817.25 USD 😕
While it is certainly possible to upgrade the RAM, it's also expensive given that it only has two slots:
see: https://appleinsider.com/articles/18/11/08/how-to-upgrade-the-ram-on-the-new-2018-mac-mini
My biggest gripe with the Mac Mini besides the price is the integrated graphics chip: https://www.notebookcheck.net/Intel-UHD-Graphics-630-GPU-Benchmarks-and-Specs.257928.0.html Which for Davinci Resolve is a non-starter (Resolve uses the GPU for rendering).
The GPU shares system memory (RAM), so if you are running a demanding app like Reason, Logic, FCP or Resolve and have a few videos in your timeline, RAM will rapidly be exhausted!
By contrast buying an older Mac "Pro" might be a better option for video editing: https://www.ebay.co.uk/itm/Mac-Pro-5-1-2012-3-46GHz-12-Core-128GB-RAM-GTX-980-250GB-SSD-USB3/162931000593
It comes with 128GB RAM and a GTX 980 4GB Graphics Card!
a Third option is to build a "Hackintosh" https://github.com/nelsonic/nelsonic.github.io/issues/510 But given that Davinci Resolve can run on Linux ... (a Mac may no longer be necessary!!)
https://youtu.be/CuEPD0i9gmk
http://www.logicalincrements.com/articles/videoediting
Next Action
Preferably:
[ ] Nice-ish but budget-friendly case with expansion options. (ideally lockable)
[ ] AMD Ryzen processor
[ ] Good Graphics Card
[ ] 64GB or even 128GB RAM
[ ] SSD (I've already ordered a good one on "Brack Friday"...)
[ ] Use whatever keyboard and mouse combo we have "lying around" until we feel the need to upgrade.
[ ] Which Linux OS is best for simplicity and workflow UI?