Modern large hamster cages, like the clear acrylic style potentially shown, allow for deep bedding and great visibility, key elements when learning how to setup a natural hamster cage. Prioritize large, unbroken floor space over levels. Essential components include deep bedding for burrowing (10"+), a large solid-surface wheel, a sand bath, multiple hideouts (including multi-chamber), chew toys, and opportunities for foraging. Good ventilation is also crucial.
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Similar Product Example: Mcage 4-Floor Acrylic Clear Hamster Cage (Consider large tanks/bins too)
Link: https://www.amazon.com/4-Floor-Acrylic-Expansible-Customizable-Hamster/dp/B075NYS