Thanks to our old mate Macauley for this tip.
Chess24 have their own live coverage of the Candidates which is hosted by IM Lawrence Trent and GM Jan Gustaffson (although right now as I type, their round 8 is having some sort of technical hardships. No sound). If you prefer a somewhat more relaxed style of commentary, then Chess24's is the one to choose. Both guys certainly do their best to be the Roy & HG of chess.