I have found Millenium to have the best teaser odds. I know they have even money on the two-teamer in football. Not sure about buckets. You can use the link over on the left for Preferred Sportsbooks and talk directly to a rep. GL
Parlaybook has awesome teaser odds and another plus is their underdog lines are always a point or 1.5 higher than other books, very good value if your teasing underdogs