If you don't want to install a landline, there is a service similar to a landline. In fact, it is a wireless landline, and the others are no different from landline, but you can take it anywhere and use it as a mobile phone. That can also be broadband, but it is a wireless network.
If you don't want to do the above things, you can also find nearby residents to do broadband, and several people can use a broadband.