Awesome! Always nice to see Euro Reakt in videos. I started porting some of them over to VCV Rack.
One “standalone” hardware alternative is the Axoloti (http://www.axoloti.com/). You still need a computer to program the patches, but you can upload them to the Axoloti’s RAM or MicroSD card for portable, computer-free use. The AxoControl (https://www.thonk.co.uk/shop/mtm-axocontrol-pcb/) is a DIY control surface that attaches to the top of the Axoloti. The combined system is what caused me to sell my Nord Micro Modular. Also, it powers off of USB, so you can use it on an airplane with a portable phone battery. My main complaint is that the patching interface is pretty ugly and most of the community modules have pretty sparse documentation outside of the forums. I’ve been pointing my students to VCV Rack instead. However, if you want hardware with knobs, this is the current way to go.
The Organelle is also excellent, but pricier. It has a keyboard and hardware controls built-in, so it doesn’t need a DIY solution like the Axoloti. @shreeswifty’s contributions (https://patchstorage.com/author/shreeswifty/) have made it a serious ecosystem. He’s built accurate emulations of popular Eurorack oscillators and guitar pedal effects. PureData requires a lot more knowledge and effort. My other complaint is that the Organelle needs a wall wart, so it ends up being less portable.
Within Eurorack, I really enjoy the Orthogonal Devices ER-301 (http://www.orthogonaldevices.com/er-301). It’s not a “1.0” release yet, but it’s already great. I sold off most of my Euro effects because of this. I have it permanently connected to my output, as it has a convenient built-in recorder that can record up to six tracks simultaneously to a microSD card (any combo of the four main ins, the four main outs, or the twelve other inputs). This is useful for simultaneously recording a dry signal with the wet outputs onto two separate files. I digress… the point is that it has a simple patching interface built in, along with the ability to quickly recall custom unit chains and presets. When he releases the unit SDK, this will be a monster.
Finally, a few people mentioned the ES-8. I heartily endorse that. In my Euro Reakt presentation (https://www.youtube.com/watch?v=nL4TNaJm-3M), I was using an ES-3/ES-6 combo. This meant that I also had to fly with my MOTU audio interface and its power supply in addition to my lunchbox modular. With the ES-8, my last travel presentation was much easier to fly with.