sleep training a 6 month old

hi guys so when my baby was younger she would sleep in her bassinet but for the past 2 months she’s been sleeping in my bed with me & i hold her during naps. she’s gotten used to it to the point that she knows even when i move away from her & searches for my boob. i want to transition her to sleeping in her bed. the only issue is that she uses my boob as a pacifier while she sleeps. she won’t take a pacifier or anything else. tips or tricks to help? anything is helpful!! also i will not be doing the CIO method so any tips to help her not cry is very appreciated also!! thank you in advance❤️