When I went to my first baby wearing meet up I learned some things I thought I would share.
- baby wearing experts like you to have two separate wraps so you can get a baby out without disturbing the other.
- they suggest in the beginning to do two ring slings or two woven wraps
My advice would be to do two ergos. If you want to spend a little more you could do two tulas. Here is the best video for tandem wearing twins. She does it with Tulas but its the same for ergos. Our twinsies are buddies too.