Check out sci fi helicopter 3D model on CGTrader for $30. High-quality mesh by suetibegum: 2084810 polys, 1103812 vertices. Animated, UV Mapped.
OBJ (OBJ, filesize: 227 MB), FBX (Autodesk FBX, filesize: 73 MB), GLTF (glTF, filesize: 157 MB), PLY (Ply, filesize: 80.9 MB), PY (Python Script, filesize: 2.14 KB), ABC (Alembic, filesize: 157 MB), BLEND (Blender, filesize: 157 MB), MAX (Autodesk 3ds Max, filesize: 314 MB)