
I like the official case for its flexibility. You can close it completely (except for the main connections like USB, power supply, etc.) or use different panels to access the GPIO pins, etc. No tools or screws are required. I have several of these.

Computer case Deepcool Matrexx 55 MESH black
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Computer case AeroCool Cylon black
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Fractal Design Node 304 - Black - Mini Cube Compact Computer Case - Small Form Factor - Mini ITX β mITX - Enhanced Airflow - Modular Interior - Includes 3x Fractal Design Silent R2 120mm Fans - USB 3.0
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Zalman Z3 M ATX π» Tower Computer: A Compact and Powerful Machine
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BEHRINGER UM2 Audio Interface with XLR/TRS, 1/4", USB, and RCA β Black, 1-Channel
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Creative Labs Sound Blaster Play! 3 External USB Sound Adapter - Compatible with Windows and Mac - Plug and Play (No Drivers Needed) - Enhanced 24-Bit 96Khz Playback Upgrade
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