Lots of teams don't really play a center in the usual sense. They may start 4 guards and forward, for example. Or they play 2 forwards and 3 guards. SC is a bit like the latter, though Boston clearly has center skills and often plays like a center. DePaul is a case of the former, with 4 guards and a forward in Morrow. She sometimes functions as a the traditional "rim protector" in the lane, and there's not often anyone taller than 6'1" on the floor for them. This makes it tempting to think she's the center, though she's clearly a power forward. And Brink, what about her? She's their "rim protector" but she often plays more like a wing or a forward. At 6'4" with long arms and excellent foot speed, she is reminiscent of Stewie, though with nowhere near the offensive skills. Is she a center? Was Stewie a center? Maybe, after Steph graduated, she moved over into that position.
What is a center? I think of players with these qualities: -- rebound, block shots at the rim, score effectively in the low post, pass well from the high post. Sometimes they can knock down a perimeter shot, but this is not their primary role.
The most obvious traditional center-type players I see are Dorka and Kitley, and probably Boston. Kardoso plays like a center and could be on this list, though she doesn't start. Betts played like a center in high school. Even Amari plays like a center.