I have the Cybex gazelle S which is great as you can make it a single or double. I would definitely recommend trying side by side/tandem prams as well as considering sling use, buggy board use. My eldest loves walking but for longer walks/naps and days out, he needs the pram.
Ickle bubba Venus, it comes with a newborn cacoon which can easily be put on and removed when they’re older. We still use it now and my boys are 18 months apart xx
Mountain buggy duet is the narrowest side by side on the market. Get one second half off of fb market place 😌
Depends on your lifestyle and the child. You can find secondhand doubles at a reasonable cost Vs new. I like my bugaboo donkey duo because it extends horizontally and can fit through most shop doorways. Heavy though! My eldest was keen to walk early on so you may find that you don't really need a double too much, you might be able to get away with a carrier for baby and then put them in the pram from 6-18 mths when heavier. When eldest is tired from walking swap them round and put baby in carrier. Or get a buggy board. I think you still have some time to decide. Mine are 4 & 1 so bigger gap but we still mainly travel by car and I only need the pram for days out or if at the mall.