For our game we need some free server host to do testing and try integrating our server database.
We can’t just do local hosting as that won’t accurately help us test our game for when we need a dedicated server.
Eventually we will need to pay for some dedicated servers, but for now we just need some for bug testing.
Anyone have any recommendations?
yea just use your pc at home and throw some ports open so the other members can connect. maybe its not as fast as a fancy dedicated server and the connection could suck, but hey thats just another thing to test with right? 
Thing is: dedicated servers just dont come by for free. you could try a virtual private server which i believe cost around 20 dollars, but I dont think those are powerful enough to run a unity server :P.
if you just need a database you could use a free webhost with mysql en php or something. Plenty of those around…