I found that in several D&D maps a single creature 1 square creature or statue is prominently displayed in a 4-square on some form of dais, platform, pedestal or the like.
This dais features two slightly raised lower levels and one higher raised level. It will cover the majority of 4 squares in 25 mm / 1 inch and Wyloch style without additional resizing. On the picture you see it on top of Wyloch style tiles.
The platform is big enough to hold a medium based creature, but won't be enough to put a large creature on (while the creature likely would fit, the base will not).
I'll be using this for statues mostly, one of which, for Wongo's shrine in Tomb of Annihilation, will come soon.