I have quilted many ways. First it was tying, which I still do sometimes.
A few times I machine tacked: made little tacks with the sewing machine, looks sort of like tying without the strings.
I have cross hatched, and stitched in the ditch.
I've done free motioned loops; drawn things like leaves, mushrooms and words and such.
Not too long ago, I tried meandering and was surprised how easy it was and how beautiful it turned out.
I've sent a few out to be quilted. Three were beautiful, one was not. I had to rip a lot of it out and redo it.
When I see something new, I want to try it. Ruler quilting is out there now but haven't tried it yet.