Check out Alien Creature Model Pack with Detailed Texture Low-poly 3D model on CGTrader for $50. High-quality Polygon mesh mesh by vfxcgartist: 10000 polys, 10000 vertices. PBR, Textured, UV Mapped.
STL (Stereolithography, filesize: 22.5 KB), OBJ (OBJ, filesize: 22.5 KB), OTHER (Other, filesize: 153 Bytes), C4D (Cinema 4D, filesize: 22.5 KB), PNG (PNG, filesize: 22.5 KB), BLEND (Blender, filesize: 22.5 KB), ABC (Alembic, filesize: 22.5 KB), FBX (Autodesk FBX, filesize: 22.5 KB), TBSCENE (Marmoset Toolbag, filesize: 22.5 KB), MAX (Autodesk 3ds Max, filesize: 22.5 KB), UNITYPACKAGE (Unity 3D, filesize: 22.5 KB), MA (Autodesk Maya, filesize: 22.5 KB)