I drank Twinings Darjeeling teabags for years, and they are pretty good.
Nowadays I usually go for sachets when I'm in need of the convenience,
such as from Revolution Tea or Harney & Sons, but they are on the pricey
side. If I'm out somewhere (e.g. a restaurant) that offers a selection
of Bigelow, Tazo or Stash teas, I go for the Earl Grey as being "safe."