best big boy car seats!!

my baby is a chunk and very soon will be too big for his infant seat! i’m looking for the best car seats that will grow with him! like it starts as a rear facing seat and then you can remove parts of it to eventually be a booster! let me know what worked best for you and your babe! most concerned about convenience and safety, price isn’t too big of an issue but we LOVVVVE a good deal 😀 thank you in advance!!!