Camping in E OR, SE WA

Any recommendations for campgrounds in this general area?

We’ve camped at Wallowas (beautiful but so crowded!), Cottonwood Canyon (loved everything about this except this wind), and Clyde Holiday (kind of meh?).

We’re relatively seasoned campers with kids who love riding bikes. We don’t mind dry camping but do like having a reservation somewhere.

Thank you! 🏕️