LOFAR (144 MHz) - when available - as well as our VLA L (1.5 GHz), C (5 GHz) and X (10 GHz) band images and VLASS (S-band, 3 GHz) of the 18 targets of the sample, each with a 5σ contour encompassing the main target in white. The sizes of the beams are shown in the bottom-left corner, while the scales are in the bottom-right corner. The cutouts have sizes of 1′×1′, 20″ × 20″, 20″ × 20″, 6″ × 6″ and 4″ × 4″ at 144 MHz, 1.5 GHz, 3 GHz, 5 GHz and 10 GHz respectively - except for sources with larger detected diffuse emission (J00418+4021, J12562+5652), which cutouts have been increased to encompass it.