Because I didn’t know this myself for many years, I’ll add to this that orange pekoe has nothing to do with the fruit/flavor orange. “Orange pekoe” is a tea industry term that refers to high quality black tea.
If you DO want black tea with additional orange flavor, Bigelow’s “Constant Comment” is a popular choice. Trivia: this also happens to be the specific tea Leonard Cohen had in mind when he wrote “Suzanne” (“she feeds you tea and oranges that come all the way from China”).
For herbal tea, I agree with those who’ve recommended Celestial Seasonings. They make a wide variety of flavors, so you can probably find something you like.