I can only recommend a few bands to you,

First of all, Augustana, my favorite English band from America, has very good music.

Big-name bands don't need introductions at all. If you don't even know bands like coldplay, Oasis, Snow Patrol, Tiger House, Charm, etc. Don't listen to the British.

I'll introduce you to some unpopular people,

Belarusian, servant, poor rich man, Howie Day, lisa hannigan,

These are just unpopular for some people, but they are not unpopular for people who really listen to songs. Don't ask such questions in Baidu. Most people can't answer well at all, just copy the answer or answer irrelevant questions. Go to some good forums to find your own music.