If you intend to go down the Chromakey route then there are two options, the standard green/blue background or the green led ringlight and reflective backdrop.
With the backgrounds you must have even lighting and good subject separation (if not you can get a green/blue colour cast, the software is only so good) so you need a bit of space to shoot in.
The reflective background type is expensive but great if your limited for space
With both methods you can use Photokey software to batch output images or even better you can automate shooting output by using tethering, it really is that quick