I actually am really enjoying the current economy system, but it took me a bit to figure out how to best organise my worlds. this is just the way that seems to be working for me but having them organised into
Industrial worlds, world making full use of their districts to make either minerals, food or energy, and end up typically as rural worlds cause I build at most one city district for some extra needed buildings. pick these worlds based solely on their districts, ignoring planet size, and if they've got any strategic resources then that's an added bonus. I use the building slots on these as booster buildings for the worlds resources, military buildings (some of which provide their own housing, very handy) the odd strategic resource production, and housing buildings to populate the buildings while all other housing from districts does those districts jobs.
Commercial worlds(or urban), these are worlds you should pick entirely on their world size, with strategic resources as a pleasant bonus. these worlds have usually almost if not entirely city districts, and I use their building slots for my jobs. these produce all advanced materials (alloys, consumer goods, science, unity, trade). these worlds usually require (depends on stations obviously) need at least one or two industrial worlds to provide the raw materials for use. these are the planets that should you get the ecumanopolis perk will get made into them. almost all megastructure's fit in this category ( I find late game minerals are my drag, with energy coming from trade and food unnecessary cause synths) so I just use them for advanced goods and large populations.
I find specialising like this keeps things simple. I don't have to worry about strata cause the worlds really only have one, either workers or specialists, not both. and I can change prioritys easily to get my pops out of those clerk jobs and into the mines.