West Ham plan to sign Gianluca Scamacca in the next 24 hours after agreeing a £30.5m fee with his club Sassuolo over the weekend.
The 23-year-old is due for a medical ahead of signing his contract. West Ham still have some work to do on signing winger Filip Kostic from Eintracht Frankfurt but talks are ongoing.
David Moyes also likes Napoli midfielder Piotr Zielinski but that move is deemed unlikely.
A striker was high on Moyes' list of priorities this summer as he looks to ease the burden on Michail Antonio.
West Ham expressed an interest in signing Armando Broja, but a deal for the Chelsea striker has yet to materialise.
Scamacca scored 16 goals in 36 Serie A appearances for Sassuolo last season.
The Italy international was at PSV as a youngster before signing for Sassuolo in 2017. He had four loan spells away from the club but was hugely impressive last season.
West Ham's most high profile signing so far this summer has been the arrival of defender Nayef Aguerd from Rennes. Meanwhile, Flynn Downes has joined from Swansea and Alphonse Areola has made his move from Paris Saint-Germain permanent.