Seeker and Calstar both rate their 550's at 20-80 which is probably based on the old Sabre ratings. The Seeker rating is 20(40)80 meaning 40lb is the recommended line rating. A lot of different reels would probably work. It depends on what you are going to use it for, throwing jigs or a 30 or 40 lb bait outfit. Do you want a star drag or a 2 speed lever drag. You could use a Shimano Trinidad, a Newell 332, a Penn Fathom 25 or 30, a Shimano Torium or even an old Daiwa Sealine sl 30 or 40.