The new "Tracestack Topo" layer on osm.org has a higher resolution, and would look pretty crisp! But around my preferred map scale of ~1:10000, it doesn't show the outlines of buildings, which I really don't like, so it's not an option. :(
You can compare the two styles (and many other styles) here: https://mc.bbbike.org/mc/?lon=9.989164&lat=53.550867&zoom=16&num=2&mt0=mapnik&mt1=tracestrack-topo