Best cosleeper? Or toddler and baby set up?

With my first daughter who is now 4 I coslept together in my bed because hubby was not sleeping with us. Now we are sleeping together in a full size bed and my daughter is using her convertible crib (picture included in post) as her sleeping area. After baby boy comes I will need a place for hin What do you reccomend? Should I get a co sleeper (reccomendations?) or bassinet to put next to our bed and leave my daughter in her convertible toddler crib or should I use the crib as the cosleeper and just get my daughter a separate toddler bed. We will all be in one room until we can move to our new apartment. ☺ Thank you!