I usually use my walking foot for quilting, but if I want to use a decorative stitch to SID I have used my open toed foot or zigzag foot too.
The more stretched out a decorative stitch is, the easier it feeds through the machine.
Lengthening a straight stitch while doing SID was another appreciated tip I was given years ago :wink:
Using a wobble stitch (a very very narrow zig zag stitch) for SID is more forgiving if you wander a little too. It also is pretty, but doesn't stand out a lot.