Hi and welcome to the board! IMHO the one quilting technique that emphasizes perfect piecing and any piecing for that matter is SITD (stitch in the ditch). Ditch all those points!! Once everything is ditched, The next thing that emphasizes the piecing is to echo elements. I prefer 1/4" echo either inside or outside the pieced element. Finally the last thing that emphasizes those perfectly pieced points or elements is tight background fill behind the element to make it stand out.
Here are links to pictures I have posted that illustrate these techniques:
Agave Garden, the big reveal
Triangle quilt
Mariners compass LAQ is done!
https://www.quiltingboard.com/pictur...c-t289353.html
Edited to add, I quilt on a longarm, not a Domestic so all of my work is free motion but ditching is done with rulers. On a domestic with a walking foot, you can still do the ditch work and echo work. For tight background fills there are many straight line designs that are meant to be done with a walking foot that will emphasize the piecing. Back when I hand quilted, I did a lone star and echoed 1/4 inside every single diamond. then I did the background with feathers and crosshatch. This could easily be accomplished with a domestic machine and walking foot by doing just the crosshatch and eliminating the feathers.
Lonestar quilt