Right now Sav has the cheapest first year at $9.99, and Dynadot the cheapest renewal at $60.99. Over three years the lowest total at one registrar is $133.07 at Sav.
Why does .organic cost more after the first year?
Many registrars sell the first year below cost and recover it at renewal: at Sav, .organic renews at $61.54 after a $9.99 first year. Compare the renewal and 3-year columns before you buy.