Triangle, trapezoid, parallelogram, pentagon, hexagon, octagon, star, cross, message bubble, arrow-left, arrow-right, plus a custom polygon option for arbitrary point coordinates.
clip-path has good support in modern browsers but limited support in older ones (notably older Edge/IE) — check caniuse.com if you need to support legacy browsers.
Select "Custom Polygon" and enter your own comma-separated point coordinates directly.