The ONLY acceptable worm ship with Emma is Queen Bee. Take that Emma/Sophia diabolicry out of this pagan household!!! *Fury*
Hehe.
I think if Sophia does have a thing for Emma (inconclusive but not unlikely), it’s probably unrequited, whether Emma is just doing all of this in order to stay on good terms with the murderous cape or not.
Emma and Taylor… I don’t think it’s possible in canon without some major development (even if Emma were to come clean about why she did what she did, I don’t think Taylor would forgive her that easily), but I can imagine fanfics having fun with it.