Right now Porkbun has the cheapest first year at $3.60, and Epik the cheapest renewal at $8.43. Over three years the lowest total at one registrar is $21.10 at Porkbun.
Why does .fans cost more after the first year?
Many registrars sell the first year below cost and recover it at renewal: at Porkbun, .fans renews at $8.75 after a $3.60 first year. Compare the renewal and 3-year columns before you buy.