Look for strains that are grown in the Netherlands ( Holland.) - as they have a cold long summer like the Uk.
I think @GreenBhoy does some photos in the London area of the Uk, maybe he’s got some recommendations .?!
Good luck with finding some good/quick ones with mould/mildew resistance ,etc …
Happy hunting buddy.
Gaz.
Ps.
( just adding … .)
My latitude is nearly at 56 degrees north.
It’s equal to Alaska and Northern Canada etc.
Maybe the Alaskan Thunderfuck might be a good choice. ?! I’m sure there are other cultivars that will do well in your climate. .