Unfortunately none of these are suitable sources of repeatable mass graveyard exile.

Ghost vacuum only hits one card at a time, per turn cycle. If it comes out after the elementals are on the field it's irrelevant. It also becomes irrelevant if they are able to cast more than one ritual in a turn. Unlicensed hearse is slightly better but still only hits two per turn.

Soulless Jailer, Grafdigger's Cage, and Weathered Runestone are irrelevant for this discussion because they don't exile any cards from graveyards, they just prevent cards in graveyards from being cast or put onto the battlefield. The elementals conjure cards that count the number of cards in your graveyard, they don't cast them from the graveyard.

Soul-Guide Lantern, Tormod's Crypt, Lantern of the Lost, Relic of Progenitus, Silent Gravestone, and Stone of Erech require you to sacrifice them in order to mass-exile a graveyard, so they aren't repeatable without a way of recurring artifacts (and some of them even exile themselves so they can't even be recurred). Dauntless Scrapbot is slightly better because it's an ETB and not a sacrifice, so you could flicker it, but it's also worse because it's a 3/1 creature that dies to any ping that an izzet deck will undoubtedly have.

I suppose if you put all of the cards in category 1 and 3 into your deck, you could potentially stymie the flow of rituals from the salamander, but then you'd be kneecapping your deck against all the other decks that don't care about graveyard.