If you are looking to direct fans to your YouTube Music artist profile (as opposed to your YouTube channel) - you can search for your artist name and filter the results to artists on https://music.youtube.com/. Hover over the artist profile that matches yours and on the far right-hand side, you'll see an icon with three dots. Select this and choose the Share option. You'll find the corresponding artist profile URL at the bottom of the modal with an option to Copy.