Looking for Budget-Friendly Minimalist Micro ATX Cases

You might want to check out the Lian Li A3. It's a fantastic option with a sleek design that's available in various colors. The Jonsbo D32 Pro is also a solid choice if you're looking for something minimalistic.

The Montech Heritage Pro is around $100 and comes with three intake and one exhaust fan, which saves you from extra fan costs. It's available in both black and white: https://pcpartpicker.com/product/m4nXsY/montech-heritage-pro-microatx-mid-tower-case-heritage-pro-white.

Check out the NZXT Flow case. It's good for airflow and comes full-sized without any flashy gamer features. Here's the link: https://www.amazon.com/NZXT-Flow-Full-Sized-Back-Connect-Motherboard/dp/B0DQPMJ6MJ/

I recommend the Fractal Pop Mini Silent. I've used the ATX version for years, and it's a great, discreet box without RGB or other distractions. You can find it here: https://www.fractal-design.com/products/cases/pop/pop-mini-silent/black-solid/

Consider the ASUS Prime AP201. It's a Micro ATX mini tower case that offers good airflow and a clean look. Check it out here: https://pcpartpicker.com/product/fPZ9TW/asus-prime-ap201-microatx-mini-tower-case-ap201blkmesh.