Car seats

Hi Mommas! I’m a new mom to be and I’m stressing over everything so I figured I’d make it easier on myself and ask you ladies what you guys think..I’m looking at car seats and I’m a little bit lost, I was hoping you guys could tell me the car seat you would best recommend and why? I’m looking for a car seat that’s for all sizes I think that’s the convertible ones? From infant - to where they don’t need one anymore! Please let me know what you would recommend as the safest best option and why! You would help me out a lot! Thank you