Double stroller recommendations

I have a 2 year old and an did with the second in September. I have a safety first car seat from my daughter and I'm struggling finding a double stroller that fits it. I like the idea of ones like the Graco Ready to Grow sit & stand because they're not huge and you can change then around. I'm considering just getting and just using it without the car seat, but do any seasoned second time mom's have recommendations? Safety first doesn't seem to have double strollers.