Another FTP?

I have an ftp already, but is it possible to get another?
I would like to have my users be able to directly uploaded large files to my site for my review. This seems this easy way- creating a ftp:// specifically for this purpose. Since I am a beginner, I don’t know if this is the best way or even possible. Where can I get an additional ftp- do I need to buy another website?
Any help anyone could offer would be so appreciated!
Thanks in advance!