Not making a saddle recco, but if it works on a trainer, it should work on the road. Doesn't everyone get out of the saddle more when riding outside vs a trainer?
Not trying to be a smartazz, butt....for saddle issues: 1. get out of the saddle more while pedaling, 2. relieve pressure whenever coasting, 3. practice pedaling with 0.5mm between your saddle and your sitbones (puts more burden on your strong leg muscles than soft tissue spots.)
Good Luck
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Vintage, modern, e-road. It is a big cycling universe.