Mighty Leaf and Harney and Sons do a good bagged tea. I would look for any bagged tea that essentially is loose leaf tea in a bag. There are some really good ones out there. Tea Gschwendner has some on its website but I have not tried them. Harney and Sons loose leaf is in the sachets.
http://www.mightyleaf.com/tea-pouches/
http://www.harney.com/Details.cfm?Pr...&secondary=866
http://shop.tgtea.com/store/category/21/55/Teabag/