Here's what we know from Ross' article. Presumably these people are on the list:
The vote authorizes Sen. Ron Johnson, the Republican chairman of the Homeland Security and Government Affairs Committee, to subpoena Stefan Halper ...
The committee also approved issuing a subpoena for Steven Somma, an FBI counterintelligence investigator who served as Halper’s handling agent. A Justice Department inspector general’s report released on Dec. 9 faulted Somma for numerous errors during Crossfire Hurricane.The "errors" mostly involved the Carter Page FISA. Somma was a case agent on the FBI's Carter Page investigation. Links for Somma are here.
Johnson has sought interviews with former FBI officials who led Crossfire Hurricane, including James Comey, Andrew McCabe, James Baker, Peter Strzok and Lisa Page.
He is also seeking depositions for former CIA Director John Brennan and former director of national intelligence James Clapper.
Also on the list are Cody Shearer and Sidney Blumenthal, two longtime Clinton allies ...
Johnson also plans to subpoena [Jonathan] Winer [another Clintonista and Chris Steele confidant at the State Department] ...
UPDATE 1: More details from Fox. Still not a complete list, but additional names. I'll highlight those not previously named:
The committee also authorized subpoenas for Sidney Blumenthal, former Obama chief of staff Denis McDonough, former FBI counsel Lisa Page, former FBI agent Joe Pientka, former ambassador to the United Nations Samantha Power, former FBI director of counterintelligence Bill Priestap, former White House national security adviser Susan Rice, former FBI agent Peter Strzok, former FBI lawyer Kevin Clinesmith – who pleaded guilty to making a false statement in the first criminal case arising from U.S. Attorney John Durham's review of the investigation into links between Russia and the 2016 Trump campaign – among others.
The committee further authorized subpoenas for “the production of all records” related to the FBI’s original Russia investigation and the Department of Justice Inspector General’s probe, as well as the process of “unmasking” for James Baker, former FBI Deputy Director Andrew McCabe, DOJ official Bruce Ohr, FBI case agent Steven Somma, former U.S. Ambassador to Russia John Teftt, former deputy assistant attorney general Tashina Gauhar; and Stefan Halper.
The committee also authorized a subpoena for James Baker, the director of the Office of Net Assessment at the Defense Department. That office awarded government contracts to Halper, including one in September 2015.
It's known that Senator Johnson has been looking closely at ONA's James Baker, so that's no surprise. Of special interest is the inclusion of Obama WH officials on the list: Power, McDonough, and Rice.
UPDATE 2: Full List (h/t commenter EZ). Some new names: