Double stroller?

So basically my son is 4 and I’m due next month with a baby girl. My son is about 40 lbs but he has autism, and HATES walking... he always asks for a hug (aka carried) or wants to go into his stroller. We’ve been kinda debating maybe buying a umbrella stroller since they’re easily portable (& we have a carrier/normal stroller for the new baby. But that’ll only work when there is two of us..) my husband does work and I spend a lot of time transporting my son by myself which is fine because I only have him right now (he has serious safety issues in parking lots, trying to run off, trying to wander, refusing to hold hands or refusing to walk.) there is gonna be no way I can wrangle him around along with a newborn on my chest or in her car seat or in a stroller. So we’re thinking double stroller so I can plop them both in there and not stress or worry as much but he’s bigger so we’re just kinda confused on what will be the best fit for us.

Just wanted to see if you guys had an suggestions!

Thanks!!!