.coop are not easy to get and thats why nearly no registrar offers them
Eligibility Criteria to get .COOP
The following are the primary categories for determining eligibility for a .COOP domain name.
(COOP) The organization is a democratically controlled member owned cooperative, consistent with the International 7 Cooperative Principles; or
(CA) Is an Association comprised of cooperatives; or
(CC) Is an Organization that is majority controlled by a Cooperative; or
(CS) Is an Entity with an operation or practice area principally dedicated to serving Cooperatives.