Ok, the starting point here is your lifestyle.
Do you drive everywhere or do you walk lots or use public transport?
Do you live in house or a flat? Stairs to factor in?
Do you have any physical limitations - back problems, joint problems?
Do you have a dog that requires a daily walk over muddy fields/Woods?
If you’re a walker, think about something with big wheels so that it’s smoother to push and gives a more comfortable ride for the baby. If you have to regularly use public transport then you’ll need something which will fit on the bus or fold easily to fit on.
If you love shopping/being in town then something smaller, narrower with manoeuvrable front wheels will help.
What sort of space is available at home for storage? Is there room in the hallway or corner of a dining room to leave it up or will it have to be folded for storage at home?
Weight is a huge factor if you have physical problems. Not usually the weight when pushing but when lifting in and out of the car boot or up and down flights of steps.
If you’re an outdoorsy type then something with big wheels is definitely required. You’ll need plenty of boot space in your car for that.
Have a think about these and post back then I can narrow it down a bit to suitable products.
Hope this helps?