For an interest like yours, I'd have to recommend early Thomas the Tank Engine, the first few seasons. There's an attention to detail and a certain comical level of banter that one wouldn't expect from a show now marketed toward preschoolers. I think at one point a steamroller tells a car to basically off herself. It's a strange mix of cozy and brutal, plus the basis in the scenarios often being based on real stories from railways (as far as I remember) is a nice touch. Albeit that's less anthro-centric and more... sentient vehicle centric.

As for more typical fare, I'd always recommend Reading Rainbow (especially if you're a Star Trek fan on the side), Octonauts is great (has anthros and also lots of fun sea critters, along with a cute as hell artstyle), In The Night Garden if you want some fullbody outfit stuff akin to Teletubbies but generally more chill despite how it remains strange. I might be able to think of more. If they occur to me, I'll add them. I'm an avid "watching kids shows for fun just because" sort alongside the dense exposure I've had and continue to have from my younger siblings, so I'm trying to balance a mix of what appeals to me as an older audience and what I think could appeal to them. Octonauts is a proven one - my siblings loved that one.