Glueckundseligkeit – A converted church with a fun modern atmosphere. There is a kids playroom, outdoor playground and they give out colouring paper and crayons.
Nichtschwimmer –  Modern. Nice outdoor eating area. Also has a kids playroom
Bultmanshof – Old farmhouse with a modern interior, has nice outdoor seating area overlooking a pond and park. Has a good sandpit & toys outside and an indoors playroom.

Cafe milestones – good brunch place, most reminds me of the brunch places in the US.
Bauernhause Museum – has a selection of great cakes and a nice outdoors seating area, sandpit for the kids and you don’t need to pay admission if you’re only visiting the cafe.