Car seats for three?

Jullz ☀️

I currently have two Safety First 3 in 1 car seats in our Honda Odyssey for our 3 and a half years old and our 1 and a half year old. Expecting baby girl in August. We would like all three kids in the second row of the Odyssey if possible.. Which car seats would you recommend? We are looking into the Chico Nextfit for our two oldest and the Chico Keyfit for our newborn but does that all fit in one row?

Also right now both our kids still need help getting into their car seats... So would I even be able to have all three in one row?

Someone help me I’m so overwhelmed omg.