The strongest centre left candidates at the moment are the Greens. As far as electoralism goes, it would be better to stand behind a party that actually has a membership than split further into parties which frankly look the same as countless other "like the left flank of Labour but better" parties.

At least something like the Northern Independence Party could raise the priority of the North. I'm not sure what this offers that, say, the Breakthrough Party doesn't apart from further vote splitting.

Feels like it will offer a similar level of political success and distinction as when you are trying to look up CPB vs CPB-ML vs CPGB-ML vs NCP vs RCPB-ML vs... except with everyone having platitudinal tech marketing guru's branding like Transform, Change, Breakthrough etc.