https://rarock.com/
This morning's playlist had Walk (Pantera) and the Parlortones, Offspring, In Flames...and no ads (edit:there are ads)
Oddly enough - I found it off an mybroadband article punting http://www.tv2go.co.za - a new local online broadcaster. 100 Channels of arguably C-grade dstv content, but there's a few things there that might tweak your fancy . One nice thing, it seems hosted locally, no buffering!