Glasner confirmed his departure from Selhurst Park at the start of the season and the club has been planning the transition throughout.
Frank Lampard, 47, who has guided Coventry City to the Championship title in his first full season in charge, has emerged as one of the candidates. A move would require a compensation payment of approximately £5 million and would represent a significant decision for Lampard given Coventry's return to the Premier League for the first time in 25 years.
Kieran McKenna, who manages Ipswich Town, is another name on the list. The Northern Irishman has extensive experience at Championship level and a compensation package of around £8 million would need to be met.
His availability will partly depend on whether Ipswich secure promotion to the Premier League this season, stats the Independent.
Andoni Iraola, who is leaving Bournemouth this summer, was previously on Palace's radar and remains a consideration despite his apparent preference for a larger club. Fulham are also monitoring Lampard given Marco Silva's contract expiry at Craven Cottage, which could lead to him becoming available.
The attractiveness of the Crystal Palace role will be shaped by how the club performs in the Europa Conference League. A trophy would deliver Europa League football next season and significantly increase the budget available to the incoming manager.