Can anyone recommend a Bluetooth keyboard that can be put over the butterfly keyboard (13" MBP in my case)? Preferably mechanical, and access to the trackpad should not be blocked.

I use my own Ergodox for my desktop, but they are not portable enough. Something that can fit above the original keyboard will minimize the footprint.

[1] https://m.signalvnoise.com/the-macbook-keyboard-fiasco-is-surely-worse-than-apple-thinks/