The hospital I delivered at gave us a Halo Sleep Sack as our gift & my baby refuses to sleep in anything else.. 🤍
We used Zipadee zip for under a week and then went straight to the Halo sleep sack. But my baby wanted his arms free so maybe yours will like the zip as a transition
My daughter sleeps in a generic sleep sack now, but I did use a transitional swaddle for a couple of weeks. We used this one: https://a.co/d/5xbulNj
I love the Love to Dream swaddles. They keep their arms up but tight so they can feel swaddled. They even have a transition one where the part their arms go in can be taken off.