Contact the Crappie Professor, he guides on Shabbona and others. Plenty of fishing to go around, not much for size, but they have quantity.
Fishing Guides | Shabbona Lake State Park
https://www.lake-link.com/pro-staff/jim-kopjo/176/
Jim knows the lake better than anybody. He was on the board for years and planted more than half the cover in that lake.
HOI Crappie Club
Where family and friends come to compete for a little more than bragging rights.
Quick, someone teach me how to fish so I can win this tournament!!!