If anyone is wondering, there is a list of artists that are open to drawing consensual incest (OCs or fan art of incestuous ships in fiction). There are categories for different styles of art (e.g. cartoon style, anime style, realistic style), sfw and nsfw.
If you’d like to know about this list, check out the shipcest discord channel: https://discord.gg/CDaqwrV
You’ll find the list in the Commissions section. If you or someone you know is an artist that is open to taking these kinds of commissions, feel free to comment here with a link to your art page (or comment in the discord channel) if you’d like to be put on the list ^_^