Hi Cavendish,
I'm afraid it really is trial & error. It depends on your climate & soil ( or what you plan to put in your containers), which may be very specific to you and what you want from your potatoes. When I first started growing some of the locals adviced me to try Ebden Blue & Kerrs Pink - absolutely awful for me the slugs loved them & ate most of my crop.
I got on really well with Arran Victory ( late maincrop), but found it too floury as it would quickly cook to nothing. I still grow a few for chips. The ones I've stuck with throughout my growing life have been Red Duke of York ( early/ second) & Pink Fir Apple ( late maincrop, but can be cropped earlier) . I love Golden Wonder ( late maincrop), but it doesn't crop well here. I had a great crop one year with a tattie called Kestral ( second early) from the Organic Gardening Catalogue - they haven't had it since or I've not looked properly. But I would love to get hold of it again. Others I've grown or grow with reasonable results are: Arran Pilot ( early) , British Queen( second early) & King Edwards ( maincrop).
I'm trying some new varieties this year including Maris Bard ( early), which I've never grown before.
When you get the hang of the type of potato that is right for you & grows well, you'll be able to make a more confident choice of variety.