If you need high quality designs, this Ellipse Stroked SVG icons is what you are looking for. Yes, it's free to download right away, test the colors or copy the SVG inline code.
You have the download buttons bellow and can choose between two popular extensions, SVG or PNG formats. Also, before downloading the Ellipse Stroked SVG icon, you can try the colors from the top of the icon, and test it, if the color fit with your ideas. If not, just refresh the page and you'll have new posibillities