We got a joie I360 R129
We got a Graco 4Ever DXL and it’s great! It will last until they are like 100lbs! As for a stroller- if you’re moving out of the infant seat, there isn’t a car seat to move in and out. Look for good umbrella/ travel strollers. Ergo Baby Metro+ is a really good - can be used day to day and travel (folds up nicely, sturdy, safe, etc)
I know Graco is not non toxic, not sure about Ergo
I don’t have a good idea for you. Mostly just here to say I’m not ready to get rid of the infant seats yet! I think my little chunk would be happier out, but he naps in there while we are driving a lot and I don’t want to wake him up to take him in.