2 boys 18 months apart (now 14 & 12).
I bought a side by side twin pushchair as 28 month was a late walker but also at that age I imagine most will still get tired (and it helps to keep snacks/toys you can keep them entertained with when you want them to sit in pushchair!). I got a 3 wheel/360’ nicker but reviews will he’ll you find one that suits
A sling for the baby will help you, as you still have to get lunch and drinks etc for your toddler
Make a special box of toys if books that can be kept separate from their other things, then if you need to keep toddler busy when feeding baby they can choose a special thing from the box and put it back afterwards (complete kidology but will create positive associations with you feeding baby)
It was honestly not as hard as people will have you believe, as long as you lower your expectations of yourself. If you have two babies under 2, and someone comes to the house and you’re not dressed and the house is a tip, no one will judge. On those days, cuddling up in front of CBeebies is your friend (allows you to dose too!)
Before baby comes, spend time on their independence. If you can put a peg for their coat at their height, And ‘train’ them to fetch it and their shoes, put it on themselves etc, getting shit done and getting out of the house will be easier. Train them to climb into their car seat themselves as soon as possible too, especially if you get massive and slow in late pregnancy and after giving birth