Barcelona have made Bayern Munich defender, David Alaba, their No. 1 target to provide competition for Jordi Alba, ESPN reports.
The LaLiga champions are also considering Augsburg's Philipp Max and Real Betis' Junior Firpo as alternatives.
Alaba, 27, offered himself to Barca through his agents several weeks back and is the club's first choice due to his versatility and experience at the top level.
Barca believe he would bring competition for Alba, who is the only left-back in Ernesto Valverde's squad.
Also the Spanish club like the fact he can play in the middle of the back four, after missing out on Matthijs de Ligt to Juventus.
He could also provide cover for Sergio Busquets in midfield if needed.
Despite Alaba's desire to make the move, negotiations with Bayern are not expected to be easy.