Check out Church Interior Low-poly 3D model on CGTrader for $9. High-quality mesh by militarymodels99. PBR, Textured.
STL (Stereolithography, filesize: 49.9 MB), OBJ (OBJ, filesize: 26.6 MB), BLEND (Blender, filesize: 7.62 MB), FBX (Autodesk FBX, filesize: 10.5 MB), GLTF (glTF, filesize: 5.49 MB)