I have 3

Baba sling used till DS1 was 4 months old but found it was uncomfortable one neck.

Ergo loved once DS1 could sit up didnt like with newborn, love it on back also.

Close carrier love it so comfy, a bit fiddley to get baby in but worth effort, I can put DS2 in here and still carry DS1 on hip out to car etc.

Good luck