Compare the beers you like to this list
, then start trying different strains. The best advice I can give is to start experimenting based off what you like, but find something that works well with your system. There's one yeast strain that can produce amazing beers, but I've given up trying to use it because it's too finicky for me (or, I just haven't been able to make it work on my system). Finding a strain that makes brewing easy for you is just as important as anything else - when you can manage a strain well, you're going to get the best out of it.
As for particular breweries and their yeast, most use just one strain for most (sometimes all) their beers. The more established the brewery, the more likely it seems to be to use just one. Fuller's, for example, has just one strain they use for everything.
You can get the Fuller's strain from Wyeast and White Labs. Lots of people like it. Try Wyeast 1469 as well. Based off what you state above, you should like it a lot.