Sleep sacks/swaddles for newborn?

HELP: I have a 2 week old who's struggling with day/night confusion and we're trying to implement a routine for him to get used to when he's older.

I'm struggling with what the best option would be when it comes to swaddling. He naturally rolls to his side and likes his arms up. He also finds comfort in smushing his face against the mesh of the bassinet.

At this age, should I be traditionally swaddling with a muslin blanket? Or should I be using a sleep slack or those swaddles like the halo or Ollie? If yes to a sleep sack, should it be weighted? I'm really struggling with the options please help!!!