Hemed is in the final year of his contract at the Amex Stadium, and it is claimed the Seagulls could cash in following the allegedly imminent capture of Raphael Dwamena from FC Zurich.
Brighton manager Chris Hughton
Reading are said to have had a £4 million bid for the Israeli turned down earlier in the window, and could now face competition from Championship promotion rivals Leeds and Derby.
Leeds sold last season's top scorer Chris Wood to Burnley earlier this week, in a deal rumoured to be worth an initial £15 million, leaving a void to fill in Thomas Christiansen's attack.
Former Leeds striker Chris Wood
And it is claimed Derby are also in the market for another striker, despite Chris Martin's return from a loan spell at Fulham.
Hemed, who spent four years in Spain's La Liga before moving to Brighton, has scored 31 goals in 90 Seagulls appearances.
The 30-year-old has hit double figures in each of his two full seasons in English football and helped Chris Hughton's side gain promotion to the Premier League last term.