Forester is a great choice as is the Outback. I have my Venza for that reason, wanted a kid hauler that was practical and could bring things like a stroller + groceries.
In hindsight I might have opted more towards the Outback as it had more cargo space than my Venza, but really no regrets. Spacious interior. The Outback was a joy to drive and roomy as well.
The Kia Sorento is a nice alternative as well but price can climb to unreasonably high levels as their packages are an arm and a leg. Something in the same scope as your current forester might be a better vehicle to pursue (Sportage, Forester, CRV, Equinox, etc). If its working out for you of course (do you want more room or is it ok for what your doing atm).
Or you can keep your current Civic and just make it work. I've seen others do it, (four or two door). Just a matter of convenience!. I've seen people load the kid with a drop top Mustang etc!