Cut off both ends of each zucchini. Shred each finely using a rotary or box grater.
Add 1 teaspoon of the salt to the shredded zucchini and massage with your hands so it is completely coated. Let sit for 10-15 minutes.
While the zucchini is sitting, in a large mixing bowl, stir together the remaining salt, flour, cornstarch, baking powder, garlic, chili powder, paprika, and eggs. The mixture should be thick, almost like a paste.
After 10-15 minutes, using a fine strainer, drain all of the excess water. Use your hands to press and squeeze to remove as much water as possible.
Repeat this process using a paper/clean dish towel or cheesecloth 2-3 more times. The zucchini should reduce in volume and while it will still be slightly wet, most of the excess water should be removed.
Fold the zucchini, bacon, and onion into the flour egg mixture.
Heat the avocado oil over medium heat in a large skillet. Using a 2 Tablespoon cookie scoop or spoon, scoop about 4 fritters into the pan and use the back of the scoop to flatten them into pancake like disks.
Fry for 3-5 minutes on each side or until brown.
Remove from the oil and place on a paper towel lined plate or wire rack. (Optional: Sprinkle hot fritters lightly with salt.)
Repeat with the remaining batter. Serve immediately with sour cream and chives.