I used to watch anime but haven’t watched anything new in a while now. Have a 6 year old kid and thought it would be a good excuse to start watching some together with her. We just completed little witch academy and we have seen the ghibli movies. I’m seeking more series and movies that would be appropriate for kids and also not to boring for an adult to watch.
Anyamal Tantei Kiruminzoo might work, if you can find it (I have no idea who holds the streaming rights right now, if anyone). Comedy-adventure about kids who find a device that lets them turn into animals. I don’t remember it having anything too heavy in it, although admittedly it’s been a few years.
In a couple of years, Detective Conan / Case Closed might be good (and will keep you busy for a very long time), but six is probably a bit too young.