How to get my baby to nap without CIO

My baby is going to be 5 months in 2 weeks and frankly I think I’m done with the contract naps. I own a baking business and it’s hard to get things done when he constantly wants to be helps or I get nap trapped for 2 hours 3 times a day. I love my baby so much but I think I’m doing something bad by not letting him independently fall asleep. IfI put him down in the room and he wakes up and notices I’m not there he’s WAILING until I come. Also, lately he’s only been nursing to also and he’s rejected a bottle since he’s turned a month old. Does anyone have any methods on sleep training that don’t involve cry it out that will bring me sanity and structure?