How close in age are your kids?

How close in age are your kids and do they get along well or have a good bond? My first baby just turned 2 on May 26th and I gave birth to my second baby on May 30th. My second baby wasn’t due until July 25th but I ended up going into preterm labor. I’m a little over 2 weeks postpartum but I’m already thinking of having a 3rd baby 😅. We have 2 girls and husband wants to try for a boy. I want all my kids to be close in age so I was thinking maybe trying for our 3rd within a year or two. It will be our last baby regardless of gender. I just want my kids to be able to have things in common and be each others best friends. Both me and my husband have bigger age gaps from our siblings and neither of us are close to our siblings.