I have a few basic rulers in my sewing studio.ok maybe more than a few. Most of them are the typical sized square or rectangle, but from time to time I like using quilt templates
Holiday Pattern Bundle - Patchwork Posse
Tamarinis: Patterns
Easy 2-at-a-Time Half-Square Triangles Tutorial
Walkabout QAL / One Window Home (Beginner Quilt Series)
quilt along
Acrylic Quilting Template Ruler, Wedge, For Use with 10” Precut Fabric Squares
Quilt Along with Pat Sloan, This is how I crumb: I sew and press scraps together randomly
Half Square Triangle Quilt Patterns
Pre-Cut Pattern PDF Bundle Sale - A Quilting Life
Tips and Tricks – Villa Rosa Quilts
Tips and Tricks – Villa Rosa Quilts
The 4 Best Quilting Rulers - Suzy Quilts