I use straight wire stakes about a third of the time. For the rest of the time I use those green, wooden garden stakes that are available at any garden center. I have them in 30” in length and 4 feet. The thirty inch ones are more slender but these give me three options in terms of diameter and I can trim for length.
Small bamboo stakes available at any good garden center. Easy to make your own metal stakes. Galvanized wire from the hardware store, a wire cutter, and a pliers (long nose preferred). Bend to any size or shape needed.