Check out Arched portico in Tuscan order with 3 4 columns 3D model on CGTrader for $17. High-quality mesh by seasda: 31196 polys, 31196 vertices.
SKP (Sketchup, filesize: 563 KB), OBJ (OBJ, filesize: 5.9 MB), FBX (Autodesk FBX, filesize: 21.7 MB), DAE (Collada, filesize: 8.52 MB)