Everton and Tottenham Hotspur have reportedly joined the queue of clubs keen on the Bosnian.
West Bromwich Albion are said to be keen on the former Blackburn Rovers player.
The Argentine hinted he could leave Goodison Park
HITC Sport understands that Sunderland, Arsenal and Tottenham Hotspur were all interested in the former Forest star.
The winger left Forest for RB Leipzig last month.
After Howard's departure was announced on Sunday, could goalkeepers from Newcastle United, Cardiff City and Burnley replace him at Goodison?
Arsenal star Lukas Podolski has had an injury ravaged season at The Emirates, while Serge Gnabry is now on Jogi Low's agenda.
A visit to watch 1860 Munich in Bundesliga 2 reveals the difficulties and abuse that their fans suffer from their Champions League winning rivals