Peacemaer_ic: All his stuff is free. His Patreon account is not a paywall but for donations. His website is Sensational Designs.
Around the World Sims: aka ATS4: (All her stuff is free. On her main site, you can download individual items. If you donate, it is for life and then you can download a set all at one time. It is up to you how you want to download. She has an early Patreon access, but she does not put stuff behind a paywall)
Max20: His stuff goes really well with Harrie, Felixandre, Sixam CC, Pierisim, and Peacemaker:
SimmieV: Some great Tattoos
Gallery art included in builds are on the gallery and are done by the following artists. These can all be Hash tagged with # following the artist’s name. All works you can have your sim create a copy, frame, etc. but give credit where it is due if you re-upload your build to the gallery or to your own site. Hashtag it with # and link back if possible. These are by far not the only outstanding CC Free artists on the gallery.
SimSationalToo, FruitLoop40, Taoron24121, Babewire, Catatron16, Takissis, Roseymow, Lostine815, Harfyy, Khalany, ECKOxT3MPL4RZz, Giuliabuilds, xXSarina_27xX, Anna_Vel_annA, Anfideya, Ruthless_kk, XFyna and SurfChicCreation