Being of conventional English extraction, I drink vast quantities of tea in the usual style: black tea and milk. These days it's usually oat milk, and sugar is occasionally involved (but not usually). I like an Assam-heavy malty blend of black tea (and the Twinings pure Assam is particularly good too). Clipper is probably my favourite of the mainstream brands for a standard black blend (although I'm not above a cup of cheap Typhoo).
I do drink reasonable quantities of Earl Grey too. Twinings brand for that, usually. I also drink this with milk, which (contrary to the deep insistence of internet blog spam everywhere) is actually very common. I've had it the other way (black with lemon) many times, but it's no improvement in my opinion.
I'm quite partial to a rooibos too, which I appreciate isn't actually tea, but you know. I'm not fussy on rooibos brand though; so far I've found that every brand I've tried had been perfectly decent, so I'm usually just led by price (or by pretty packaging...).