Weirdly, i come at it from an angle where GP5000s are MORE robust tires - after riding Veloflex Corsas, Vittoria Evo Corsa tubs, Michelin Pros and now Turbo Cottons.
Try the Specialized S-Works Turbo. It is a little more puncture resistant (nowhere close to Gatorskin territory, but nowhere near as depression-inducing either), but still quite a nicely rolling tire.