I pulled out these books for inspiration. KBlue's Embroidery Stitch Book by Kim So Young (106 French Embroidery Stitch of K Blue 2017), Embroidered Botanicals by Yumiko Higuchi, and Stitches from the Garden by Kathy Schmitz 2016.
In fact, I want to finally start (and finish) the Stitch book from the KBlue book.
I've been wanting to learn different stitches and have taken a few classes from different teachers and methods, which I will list below, but have been waiting for a project of my own to practice.
RSN Sampler course, Gimena Romero's courses, and Karen Turner.