Op if you're seriously telling me that you are struggling to find mass-produced bitters of the type you seem to favour on one of Britain's biggest cities, you're not looking very hard at all.
I still think you're being very closed minded,
APA/IPAs et al will predominate in summer months. As I said upthread there's cracking examples of this style, along with plenty of dreck (as there is with any style of brewing).
Dismissing it out of hand as you've tried one or two (probably Punk IPA which is to be fair a faddy mess of a beer) is like dismissing all the wonderful Helles, Marzen, Dunkel style brews because you once had a warm can of Carling Black Label from the cornershop and therefore all Lager is vile and tasteless.
As smile upthread more Red Ales will soon be on stream for autumn, if you like things like Youngers no 3, a well brewed red ale from a brewery that actually gives a shite about what they sell, will blow your mind.
Smile I think so too.
I'm lucky in that a pub has opened up near me where there is a wide range of ever rotating beers in a variety of styles and crucially two landlords who actually know and care about what they serve, let you try samples and will recommend something you might like based on what you've drunk before. I find it hard to believe there's not an equivalent in Leeds.
I'm lucky in that a new pub has opened up near us is that not only has a vast and changing selection, near us but two owners who actually know their stuff and care about what they sell and is mercifully free of hipsters. They actually recommend stuff to you and offer free samples.
.