HELP ME! FTM trying to figure out car seats and strollers

CC

I’m trying to figure out what to look for and what is best for what kind of car seat and stroller I need. I see there are travel systems that come with a stroller and car seat. Do you recommend getting a travel system or a separate car seat and stroller? Do you have any particular brands you would get or ones you would stay away from? What did you pick?