Looking for cities model for 3d map.

Hi, openstreetmap people!

I’m working on http://www.openglobus.org 3d map engine,

I’ve looked across cyber city, 3d tiles(cesium), osm buildings, geoscan, old here.com tiles and even my own data from lidar point clouds etc…
but I’ve stumbled over variety of city models and can’t make a decision what model is preferable(convenient for openstreetmap).
Could you help me please, give me a piece of advice about what city model I can(better to ask have to) use for 3d map?

Thanks, for any advice!

Cheers!

Read this:
https://forum.openstreetmap.org/viewtopic.php?id=19868