In my experience (just moved), Zillow was more owners looking to rent the property that they own privately. That's what we ended up with.
Other places like Apartment Finder and HotPads definitely felt skewed toward the new, fancy, "look at all these amenities" complexes. Also, online reviews for apartments are really hard to trust, there's definitely a vocal minority that screams through on those.
Start with location and then filter out via price or amenities. Then go visit then ones that make the cut.
I set up a spreadsheet with the amenities we cared about and compared prices vs how many amenity boxes were checked.