In my opinion Alice in Chains was the only band from the heyday of grunge that was worth a damn. Not only that but they were an awesome band. But yes, even they have a connection to Dio.
Chris DeGarmo of Queensryche appeared on Jerry Cantrell’s solo album Degredation Trip. DeGarmo was in Queensryche with Geoff Tate. Geoff Tate and Ronnie James Dio both sang vocals on the song ‘The Chase’ off of Operation Mindcrime II
Here’s my favorite Alice in Chains song, ‘Would?’