lost weight would be the fastest and least painful procedure.
my father had sleep apnea and they cut out his uvula and a large portion of his upper throat as well as doing nose and sinus surgery.
he was out for 3 weeks in pain and grossness.
he and anyone that has ever slept in the same house as him was hopeful that it would help. it didn't. supposedly the sleep apnea is gone, but he still snores.
it is all due to loose tissue in your airways smacking against each other - so you need to limit that.
sleeping on your back amplifies this by allowing the tongue to loll back into the throat and move as well. so try sleeping on your side and losing weight.