Some nearby galaxies (50 and 25 kpc SDSS images), sorted by absolute magnitude:

M101_21.2

N5194_21.1

N4594_21.1

M81_20.5

N3627_20.5

N2903_20.4

N4258_20.4

N4826_20.4

N3368_20.1

N4736_19.7

N3351_19.6

M82_19.4

N2683_19.2

N3344_19.0

N3489_19.0

N4449_18.1

N4144_17.9

N4395_17.8

N4605_17.8

N3077_17.7

N4244_17.7

N5474_17.7

N5585_17.7

N4214_17.2

N2976_17.0

N3299_16.9

N3738_16.6

N5204_16.7

N2537_16.6

I4182_16.4

Thanks to Jose Prieto for his help.