Downgrade to internet only or cancel xfinity

Hello

I am trying to get rid of my cable and just get internet only.  I wanted to get the 1000mbps plan with xFi complete but I cannot see that offer.  They keep trying to sell me 120 channels that I dont need and dont want to pay the crazy fees that come with them.  Can someone tell me how I do this.  My 2 year contract is up in 3 weeks and if I cannot get it I guess I could switch to AT&T fiber for internet.

Thanks