I have been looking for that myself! I'm looking at sewing/quilting machines, but these have models to embroider also. Here is what I've found:
Bernina 710, BabyLock Crescendo, Brother DreamWeaver (V series) and the Pfaff Performance 5.0 (which I think has the "smallest" of these four.
The link QuiltnNan provided sends you to Bernina, but shows the 820 which is way more expensive. If you're looking for ability to embroider also, they have a 750QE and a 780E which are less expensive than the 820. Just depends on what you're looking for.
But they all have a nice bigger throat space.
I'm trying to decide if I can justify the expense to myself! I have narrowed my choice, now do I jump in?
Good luck to you!