HELP!!!! baby can only sleep being swaddled

My almost 5 month old will only sleep being swaddled. I told her pediatrician this and he suggested a sleep sack, we’ve tried them before we’ve even told him about this, those don’t work either. She likes the feeling of being held. We were thinking of swaddling with one arm out. Or maybe those Zen sacks? I’m such a terrible swaddled my partner swaddled our daughter before bed, I change and feed her during night and see if she’ll sleep on her own unswaddled.