I recently did a project using a gold metallic thread from Superior on the top and a regular black on the bottom. I was doing free-hand free-motion on a Bernina with a large throat. It was easy to work with, didn't have any breakage issues. Feels nice and smooth when you rub your hands over it, I'd call it suitable for a baby quilt even but I don't know how well the thread will hold up long term. Pretty sure it was this one:
https://www.superiorthreads.com/meta...gold-mini-cone