Alternatives to SRTM DEM

[Huite]

I was testing generating an iMOD model, and I got some very low values of around -200 m for the SRTM DEM.

There's probably many filtered DEMs available, which one is ideal probably depends on the use case. E.g. for groundwater modeling I would prefer a robust, relatively smooth one: many boundary conditions rely on an elevation and large jumps generate extreme flows between them, reducing model robustness.

What are good contenders? (And can they be made available through HydroEngine?)