Subaru images (8″ × 8″ size), with the exception of A697-1 (12″ × 12″ size), centered at the coordinates of some of our targets, as shown at the top of each image. The i⁺-band is considered for all sources except for A963-1 and A963-1, for which the I_c-filter is used. The sources do not have available HST observations and are therefore not reported in Fig. A.1. North is up, east is left. As in Fig. A.3, NOEMA contours are shown in red. Small shifts ≤0.34 arcsec are applied to the images, consistent with the absolute Subaru astrometric uncertainties.