Celtic are currently taking a look at Carlton Cole, with the 33-year-old striker in the process of trying to earn a permanent contract while on trial.
Ronny Deila has told the Daily Record of the Bhoys' need to bring in further quality up front to add to the competition for places, but they may be rewarded by waiting until January before making a move.
In this piece we take a look at three strikers that may be better options for Celtic, even if they have to wait for them to become available and won't be snapped up as free agents.
Steven Fletcher (Sunderland)
Celtic tried to bring Fletcher to Scotland in the summer, according to a report on BBC Sport, but they failed in their attempts to convince Sunderland to let him leave on a temporary basis.
However, they may have more luck if they were to enquire abut the striker's services again now.
Fletcher has made a slow start to the season with Sunderland, and has regularly been used from the substitutes' bench, with Dick Advocaat picking other options ahead of him.
It indicates Fletcher's poor form over recent years, but his finishing ability is obvious and a move to Celtic could help him to rediscover his best form.
Michu (Swansea City)
Another player who Celtic tried to sign in the summer, according to Wales Online, Michu would bring plenty of pedigree to Parkhead.
The Spaniard has not played much of late, at Swansea or elsewhere, but there is little doubting his ability and his creativity would add a lot to the Bhoys' ranks.
In the summer, wages were cited as a potential stumbling block in any move, by the South Wales Evening Post, but with Michu and Swansea both keen on a parting of ways, Celtic could be on to a winner if they were to make a follow up bid.
Gary Hooper (Norwich City)
Hooper's career has not gone to plan ever since he left Celtic, with the striker failing to find his top form during two years at Norwich.
The 27-year-old has made just two appearances for the Canaries this season, and it is getting to the point where a move looks best for player and club.
A second spell at Celtic would surely be welcomed by Hooper, who was brilliant during his previous spell in the Scottish Premiership, and his return would be one which caught the eye.