I'm no expert, but this paper[0] has piqued my interest recently. From what I can kind of piece together, it discusses treating the latent space as a manifold from differential geometry, and creates a Riemannian metric for measuring distance between points on that manifold in such a way that the "curvature" of the manifold represents the semantic density of the latent space. This makes traversing between two points in a smooth/logical fashion easy by following the geodesics of the manifold. I think. Maybe. I understand maybe about 10% of what I just said to be honest, and still have lots to learn, which is part of why I find it so exciting.

[0] https://openreview.net/pdf?id=SJzRZ-WCZ