Rooms and objects you can put straight into a portfolio, shared by the people who made them. Open the builder, click Files, then Library to add any of these.
Object · Furniture · 2 KB · 38 triangles · starter pack
Credit: Modern Rooms by ankitrajput8161 on CGTrader — https://www.cgtrader.com/designers/ankitrajput8161?utm_source=credit&utm_source=credit_item_page
Object · Furniture · 7 KB · 112 triangles · starter pack
Credit: CC BY 4.0 — https://sketchfab.com/Brynnnnn — https://sketchfab.com/3d-models/low-poly-isometric-rooms-d53af0ad289a403598ee2cb41d84608b
Object · Furniture · 6 KB · 28 triangles · starter pack
Credit: CC BY 4.0 — https://sketchfab.com/Brynnnnn — https://sketchfab.com/3d-models/low-poly-isometric-rooms-d53af0ad289a403598ee2cb41d84608b
Object · Furniture · 1.0 MB · 1,720 triangles
A compact wooden shelf unit with a rectangular open compartment, crafted from warm brown timber with visible grain and knots.
Credit: modelled it myselft