Gallery of central rings identified in a sample of 81 PHANGS-ALMA galaxies. The galaxy name is given at the top of each panel. All panels have the same physical size of 3 × 3 kpc², but with differing color stretches. The minimum and maximum intensity is listed at the bottom right of each panel. The best elliptical annulus (see Sect. 3.2) is plotted in red and the beam size is plotted in white in the lower left corner.