Usual suspects.
Mazzer Mini, Macap M4, Cimbali Jr.

Buying a doserless because your Rocky is messy is kind of silly. There are perfectly good arguments for a doserless - but ruling out a great grinder like the Cimbali because the Rocky is messy is not smart.

I'd suggest looking at the various reviews of the grinders listed and choosing the one that sounds like the best fit for your needs. All are good grinders.

Personally... for my needs the Cimbali is the best fit.
But it might not be best for your needs.