Have I got good news for you.
Per the Gerrymandering Project who "bridges the gap between mathematics and law" there are fifteen states that get a failing grade (D or F).
Of those two create no partisan advantage (Tennessee, Louisiana).
Five create a Democratic advantage (Oregon, New Mexico, Nevada, Illinois)
Nine create a Republican advantage (Utah, Texas, Kansas, Wisconsin, Ohio, Florida, Georgia, South Carolina, North Carolina)
The Democratic bias states have a total of 36 seats.
The Republican bias seats have a total of 132 seats.
https://gerrymander.princeton.edu/