The 3D printed parts are only so much of the printer, and on some printers, not a part at all.
Your first questions would be: What parts can I get? and, What parts can I afford? If you need to buy it from China to afford it, look forward to a 30 day wait.
Most printers use the same parts (linear rods, electronics, motors, end stops, etc.) it's the frame that's different.
Secondary questions would be:
Build platform size needs?
Do you have available workspace?
Where on your desk will it be put?
Will you need to store it away for the winter, or use it ALL the time?
If all else fails, you can design your own, using whatever materials you can source locally.