Where to meet mom friends?

I have friends in bigger cities and they’re part of SO MANY activities! Mom/baby yoga, stroller exercise groups, parenting groups… does Milwaukee have any of these? I’ve been scouring the internet but all I could find was a mom book club once a month.

I’m a first time mom (5 weeks) and have no other mom friends in the area and would love to connect with folks. Any resources you know of in the Milwaukee area/southern and western suburbs?