I don't have much experience, but I think I understand what you're saying.
I found some studies suggesting that a Frankel Appliance could help with what you're describing. In this study they conclude that the "Significant alveolar and apical base expansion was found in the treatment group". It seems like the alveolar and apical base is just the bone on the base of the upper teeth, so if they shift everything forward and help your tongue guide the other tissue forward, it'll probably make the features less hollow.
Though, some example/reference photos would be helpful just to be sure.