If you do like more compact formats but mostly keep it at home, a TKL would probably make the most sense, because a 60% does reduce functions by quite a bit more than cutting a numpad, if you don't use it much. Some layouts like the FC660 are similar to a TKL, but it doesn't contain navigation keys, only insert/delete, but if you're not moving it every day, there's not really a point in getting smaller.
I think that you'd like tactile. If you want something not too loud and usable universally, a soft MX Brown would be fine, as well as a heavier MX Clear, with much more feedback but also significantly greater actuation force. ML is apparently similar, but it's harder to do fun things with because there aren't any other ML-compatible switches, I believe.
And if you want to try Dvorak, it's actually very easy to switch over. It's changeable by a single two-key press (generally ctrl+shift) between Qwerty/Dvorak, and I've never had a problem with others on my keyboard, I just changed it before I gave it to them or just had them click on the toolbar to change.