Blog-host platforms !

hello brothers

I'm thinking of creating:
a blogs hosting site on the sub-domain

Two weeks I searched and tried and had no luck, I know this case.

case name( please help me ;p )

There are many sites that provide the service and they have the same script, but I did not know, unfortunately.
pages10-com
onesmablog-com
and there is sample scripts same
mee-nu


For more than two weeks I have been trying to modify the multisite but unfortunately it seems that it is not suitable for free blogs, it may be suitable for personal use, or not suitable for anything at all lol
Any suggestions?