What do you run locally, on your desktop PC, or your laptop? Often people just prefer to have they’re test environments local, to avoid hosting costs and make everything faster, and to have (much) more control. It can make sense to host online on GoDaddy, if you really want to emulate teh exact environment of your production set up, though.
This will give you some food for thought:
https://pgorod.github.io/Running-in-VM/
Apart from all these considerations, if you do get up a second hosting space (whether it’s a subdomain or not), you should be fine. Just set it up on the same SuiteCRM version of your production site, and then you can export the entire database from phpMyAdmin, and import on the other. Then move you custom directory from one to the other, Repair and Rebuild, and you should have a working clone.
Look here on the forums or on Google for people explaining this in more detail.