How to choose the patches backing?, personalized leather souvenirs, challenge coins manufacturer

I used iron-on interfacing for the first time and I guess it was a mistake. What do you use when your fabric needs backing? : r/Embroidery

Fusible Iron-on Embroidery Backing Stick Protect - 7 x 7 — Simthread - High Quality Machine Embroidery Thread Supplier

New brothread Fusible Iron on Cut Away Machine Embroidery Stabilizer B

Dan Morris Dream Patch - Embroidery Iron-On Backing Sew-On Patch - 4 x 1.4

Iron-on Embroidery Backing Stabilizer, 8x8 200 precut sheets —

Large Octopus Patch Sparkle Embroidered Iron On Applique - Patchwork Panda Trims

Cross Appliques w/ Iron On Backing & Latin Cross (For Vestments)

Gold Flower Patch/ Iron on Backing/ Pair/ Embroidery Flower

Bonfire Embroidered Patch. Horror Movie/video Game Inspired Patches. Iron on Backing.

Iron on Fusible Cut Away Stabilizer Backing Interlining for Machine Embroidery