I use Blender, Fusion Studio and DaVinci Resolve Studio on a daily basis.
I use Presonus Studio One and Agisoft Photoscan on a weekly basis.
My desktop is a modified Mac Pro (Early 2009), 2 x 3.46 GHz 6-Core Intel Xeon, 64GB RAM running 3 x GeForce GTX 980Ti via a Cubix Expander PCIe Breakout box. This runs pretty sweet with the above-mentioned software.
While my desktop is rendering, I've decided to increase the performance of my MBP 15" 2016 to carry on working.
This is where I've started experimenting with eGPU's.
MacBook Pro (15-inch, 2016) Memory: 16GB, Radeon Pro 450
2 x Sonnet Breakaway Box 650W running Gigabyte OC RX Vega 64