You've received several great ideas here and I agree with them all
Each and every suggestion lends to a beautiful, but different, finished look. As mentioned already, it's very helpful to lay the quilt out and place the different border fabrics you're considering around the quilt and stand far back plus take pictures. I almost always have an instant decision when I do this.
Sometimes, I like to really frame the quilt with a thin 1/4" border followed by a 1" border and then a larger border. That's if I do a border at all - sometimes I prefer the blocks/pattern to stand on their own which, in my eye, looks more modern. And I almost always do a flange binding. The beauty of quilting - lots of wonderful options but the best one is the one you like the most!
Look forward to seeing your finished quilt!