Economical commuter, with a tolerable slushbox?

I don’t know of any slushbox that’s gonna be tolerable. I guess a middle ground between a direct connection and PRND is a VW with DSG transmission. Of course, BMW, Mitsubishi, Smart, Toyota, not to mention Lamborghinis and Ferraris have automated manuals. All of them are either too small or too expensive. Try to find a Golf or a Rabbit so equipped.