According to Guitar Lobby, Jimmy used H910.

Used for vocals on Villains, as stated by co-producer and engineer Mark Rankin in this October 26, 2017 AudioTechnology interview.

When it came time to record Homme’s final vocals, Rankin said there were three different schools of thought: “One was the upfront, clean condenser — a Sanken CU51; a ribbon for a bit of character — an RCA 44; and sometimes an old dynamic like an Electro-Voice. The Sanken has two capsules. United had one and it was insanely good; I wanted to use it for everything. The RCA44 ribbon also sounded fantastic. United have copies that have been there since they bought them new, and they’re really well looked after. Sometimes we’d use an Electro-Voice dynamic, purposely trying to get a harder, harsh sound.”

He would put either an Eventide 910 or 949 Harmonizer in the chain. “It’s a favourite,” said Rankin. “A little bit of delay and a little bit of pitch gives that really good fake room sound.” That balance between dryness and space was pretty critical. “A lot of times we’re letting the low end of the drums or the bass be the big thing and keeping guitars small. We’d have a the 949 on the vocal a lot, and then the guitars will be out wide. If we got to the point where it felt like we needed some space, we would just send something out into the room at United and record the room. It’s like the Ocean Way plug-in on UAD. Because the rooms sounds so good, you’ll fire something out on the PA, record it back on the ambient mics and all of a sudden it works.”

In this photo of Eddie Van Halen's 5150 home studio circa 1986, two Eventide model H910 Harmonizers are seen among the outboard effects. Also confirmed in this report.

Ozzy Osbourne has incorporated the Eventide Clock Works H910 Harmonizer into his sound, a key element of his musical identity as detailed in the Red Bull Music Academy article, "How the Eventide Harmonizer Expanded the Possibilities of Sound."

In an excerpt from his autobiography, See a Little Light, Mould states that he started using an H910 unit around the time Husker Du began recording the Metal Circus EP.

In this photo, Daniel Lanois is seen what looks like an Eventide model H910 Harmonizer (slightly obscured due to photo quality) in the studio racks at Grant Avenue studios. Seen beneath his Lexicon Prime Time delay and AMS delay.

Harold Budd mentions the Eventide Harmonizer being used for treatments on The Pearl in this interview, which was recorded with Lanois and Brian Eno at Grant Avenue.

In this 2014 interview, Posdnuos mentions the gear used for "3 Feet High And Rising". From the interview:

"We made the whole of 3 Feet High and Rising for $13,000, using just a Casio RZ-1 drum machine/sampler and another gadget called an Eventide harmonizer, which allowed us to match songs that had totally different pitches – we could put Daryl Hall's voice over a Sly and the Family Stone record. It was amazing."

In this photo of Laurie Anderson in her studio from 1980 that accompanies this article from The New York Times, an Eventide H910 is visible in the background. A version with the item circled can be found in this October 12, 2021 Facebook post by Eventide.

In the making of his album Peak of Normal, Holger Czukay used an Eventide Clock Works Harmonizer, as confirmed in the May 1982 issue of Electronics & Music Maker.

Tony Visconti talking about the Eventide H910 Harmonizer.

Listed to the "gear" section of her Eventide web site dedicated page.

"The effects returns on the SSL are pretty much hard-wired, and I would have used a selection of them. On the left side are the Elysia compressor, Fatso Jr tape simulator and compressor, Neve 33609 compressor, Ridge Farm Boiler compressor, Distressor, Dbx 160 compressor, AMS DMX150s delay, Eventide 2016 and H3500 effect units, and EMT plate reverb, and on the right the Drawmer compressor, Valley People Dynamite compressor, Marshall Time Modulator which is an '80s short delay and phaser, Delta Lab Effectron which is a very old digital delay, Thermionic Culture Vulture, Dbx 120 [subharmonic synthesizer] and Eventide H910 Harmonizer.”