So, as I discovered, you can literally ship Twilight with ANYONE. She's just one of those characters. In fact, she's easiest to ship with the more villainous characters! However, in the end, I just don't think Trixie is either evil enough or even close enough to Twilight to be shipped with her anymore.. Not when there are such better contenders!
Soooooo, in the end… I actually ship Twilight with Sunset Shimmer (what a painful long distance relationship TTvTT between… worlds…), and I ended up deciding that while Trixie and Twilight are broken up and Starlight was a close second to Twilight's heart… I would ship Trixie and Starlight Glimmer! And the more think of how Trixie and Starlight would interact as someone who is honestly not that good at magic and someone who is even better than Twilight herself at magic, one with a huge ego and the other without her originally purpose, I started to realize their dynamic was a lot more compatible than my old OTP of Twixie…
So, in summary, I ship Twilight Shimmer and Trixie Glimmer."