This is an area I've been doing far too much experimentation on (aka spending a ton of money on experiments):
So of these:
The Woodpeckers viseless workholding works great for edge planing but is spendy for what it does.
The Zyliss vise I spotted on a demo video in use on Jeff's workbench. That led to some sleuthing an I discovered this beast of 80's engineering. It's shockingly useful for most workholding except for edge planing. If you get this be aware that there are 1 versions, one has a quick release and the other does not. I discovered this after buying one without...anyone want a Zyliss vise...I now have 2 of these.
I wanted an easier way to do edge planning which is where I saw a wedge vise for sale on the CIHI Facebook group. Link is to the Stanley version but mine is by a small US maker. I mounted mine on a jig with bench dogs on the bottom which allows me to mount it to my MFT-like bench in next to no time and it holds boards with an iron grip. I ordered a set of the TSO powerlocks to try out with my jig. I love this thing and have no idea why it died out in use. I many have bought a second smaller one just for use on very thin stock.
For no other reason than I'm an engineer and like to design stuff. I just ordered a 12" rockler quick release vise and am going to set it up for fast mounting to the 8020 15 series extrusion that I use on my bench. I've got a design in mind for being able to add and remove it quickly.
My bench is very much for hybrid use having bought a lot of Rob's
Dashboard Accessories(all are great give Rob your money). I lack space so I needed a hybrid bench to support my power and hand tool hobbies.