Strollers okay for infants

Are there any strollers other than the Nuna Mixx that are okay for infants with the lay flat feature? I don’t know why but I can’t find a list anywhere. I know a lot of strollers have the insert but I think having it built in would be easier. I read somewhere at some point the Silver Cross Reef or Dune has the same feature but I can‘t find that info now.