Im not an avid tea drinker, however I got a cabinet full of it, but my favorites are from Davids Tea. They're overpriced imo when it comes to getting their containers, but they got some nice blends like "Forever Nuts" which makes the tea smell like nuts and apple pie with a tad bit of sweetness and turns the water pink. I'd recommend drinking this with honey than sugar as honey seems to taste a bit better with a nutty and apple tea than pure sugar.
Another by the same company is called "Cold 911" and it's been my lifesaver in my house when you got a raspy throat from a cold. It's super strong in mint and has dried juniper berries so it coats your throat real nice. But i would not recommend adding sugar or honey in it. It tastes awful if you do.