A total of 2 reviews of this product on Reddit.
Most splits are mechanical. They will not have the low profile form factor that your Dell has (which is basically a laptop keyboard). Most splits also require assembly. But, if you get one with hotswap sockets, it’s basically as easy as assembling a LEGO kit.
Here’s a pretty low profile membrane split (which is rare): https://kinesis-ergo.com/shop/freestyle2-for-pc-us/. It’s also already assembled, which is nice. I think people generally like Kinesis, but the legends on the keycaps here look like they’re just printed, which means they’ll fade over time with use. Not my kinda thing, but it seems good if you’re looking for a keyboard and not a hobby.
This is similar to the SP64 (below), but already assembled: https://www.amazon.com/Mistel-Bluetooth-Mechanical-Ergonomic-DoubleShot/dp/B08GWXCWMW. I know Mistel is somewhat popular. I can’t speak well to how good this one is though. The keycaps are nice (doubleshot PBT), but it has RGB. I’m assuming it can be disabled, but I have no means of proving that.
I’m partial to the SP64: https://www.amazon.com/YMDK-Aluminum-Socket-Underglow-Programmable/dp/B07W7Z7451. If you go that route, you’d need to buy switches and keycaps, but it should be easy enough to put together and it’s possible to get that stuff on the cheap if you don’t go extremely high end. I have hammered out a ton of code on this board. It’s not a gaming keyboard by any stretch of the imagination, however, so that might be a dealbreaker. No RGB on keys, though there’s an underglow ring, but that can be turned off.
If you’re looking for a hobby, aren’t afraid of technical challenges, and have an unreasonable amount of money to burn, then I recommend keeb.io. They have some really cool stuff, but it’s largely DIY and requires compiling / flashing software to it, which can be intimidating. Most of these are barebones kits that don’t include stabilizers, keycaps, or switches, so you’d probably want to pop in at r/MechanicalKeyboards for more advice as we all plummet down this rabbit hole together.
Good luck on your search. I hope this helps!
Damn, as soon as I submitted the post I found this one:
However, suggestions for Alice-like boards that are wireless are still very welcome…