In a large mixing bowl, whisk together the almond flour, coconut flour, paprika, garlic powder, onion powder, salt, and pepper.
In a separate bowl, beat the eggs.
Heat the cooking oil in a pot over medium-high heat until it reaches 350°F.
Taking a few pieces of calamari at a time, dip them into the beaten eggs then into the flour-coating mixture. Toss gently to coat them evenly.
Carefully place the coated calamari into the hot oil, frying them in batches for 2-3 minutes. As you remove the calamari from the oil, let them drip a little over the pot. Place them on a plate lined with paper towels to drain excess oil. Repeat the process.
Notes
If you want the best flavor and texture, use fresh calamari. Frozen can work too, but be sure to thoroughly thaw and drain it or else the resulting calamari will be a soggy mess.
Heat that oil good and proper! It needs to be at the right temperature (350°F) before you should even think about adding the calamari. This gives you perfectly fried calamari; golden and crispy on the outside, tender on the inside.
Fry the calamari in batches to prevent overcrowding the pan. Too many pieces and the oil's temperature could drop and lower the odds of a crispy calamari.