in-N-Out Spiral Ground Anchors - 4 pcs - Heavy Duty Screw In Ground Stakes - Corkscrew Earth Anchor Kits for Canopies, Soccer Goals, Trampolines, Tents, Car Ports, Tarps, Dog Tie Out and Many More

Corkscrew earth anchors. Something like https://a.co/d/03QffSns. Or https://ibspot.com/us/products/ground-anchor-heavy-duty-18-inch-earth-anchor-screw-in-kit-green-4-pack-tie-down-swing-set-anchors-auger-spiral-stakes-high-wind-camping-carport-canopy-tent-stakes-for-tree-shed-dog-sand?variant_id=49888978&gad_source=1&gad_campaignid=23853125404&gclid=Cj0KCQjwrs7RBhDuARIsAIVfBD12H0R7JFFjz8v71hrZv-Ma_L5bzs63OJP0WwtIyDmi_7uV6JpWE8MaAiyXEALw_wcB These are pretty small, I’ve seen ones that are 36 inches is 1/2 inch steel.