Comment by dragonwriter

Proportionality is always approximate, and you can have proportionality without party votes by having multimember districts with a system like STV, with the degree of proportionality dependent on district size.

Now, with what I think of as probably the ideal manageable district sizes for voters (5-7 members) that is fairly chunky proportionality, so you might still want to do MMP to reduce underrepresentation of geographically diffuse minority positions.

OTOH, there are places which have STV (usually for a whole body elected at large, but you could do the same thing in districts for a larger body) with 20+ seats in a single constituency, and if you go that big per district, MMP is less necessary.