The 27-year-old was with Sheffield United, but is now out of contract.
Per Football Insider, Morrison failed to impress enough at Sheffield to earn another contract.
He was with Middlesbrough in the second half of the season on loan, but did not particularly impress there either.
Now he is speaking with the two Dutch teams, while clubs in Turkey and England are also showing some interest in him.
Morrison played a single Premier League game, and only three Championship matches for Boro, last term.