I am no expert, but I know how to look for information.
This is taken from RAF Archives, and can be useful some day.
RAF at Alghero
No.14 (B) Squadron
The squadron arrived at Alghero on the 11th of April 1944. At the time, the squadron was operating the Martin Marauder Mk.I. While at Alghero, they maintained detachments at Grottaglie, Italy, Ghisonnaccia, Corsica and Telergma, Algeria. No.14 (B) Squadron relocated to Grottalie, Italy on the 23rd of September 1944.
No.23 (F) Squadron
The squadron arrived at Alghero on the 7th of December 1943 with their de Havilland Mosquito F.B.Mk.VI’s. While at Alghero, the squadron maintained a detachment at Blida, Algeria. The squadron took up residency at R.A.F. Station Little Snoring, Norfolk effective the 2nd of June 1944.
No.36 (GR) Squadron
The squadron arrived at Reghaia on the 30th of April 1944. While there, they maintained a detachment of Vickers Wellington G.R..Mk.XIV’s at Alghero. The squadron moved to Tarquinia, Italy effective the 18th of September 1944.
No.39 (TB) Squadron
The squadron arrived at Alghero on the 21st of February 1944. No.39 Squadron was flying the Bristol Beaufighter Mk.X. While there, the squadron maintained a detachment at Grottaglie. The squadron moved to Biferno, Italy effective the 15th of July 1944.
No.108 (F) Squadron
The squadron arrived at Hal Far on the 1st of July 1944. While there, it maintained a detachment at Alghero with Bristol Beaufighter Mk.VIf’s. The squadron relocated to Idku, Egypt effective the 26th of July 1944.
No.153 (F) Squadron
The squadron arrived at Reghaia, Algeria on the 22nd of July 1943. While there it maintained a detachment of Bristol Beaufighter Mk.VIf’s. The unit was disbanded on the 5th of September 1944 at Reghaia, Algeria.
No.256 (F) Squadron
This squadron arrived at Luqa, Malta on the 25th of September 1943 with de Havilland Mosquito N.F.Mk.XII’s.
While there the squadron maintained a detachment at Alghero. The squadron moved to La Senia on the 7th of April 1944. The squadron received Supermarine Spitfire Mk.VIII’s Mk.IX’s the following month. A detachment of Spitfires was sent to Alghero. No.256 (F) Squadron moved its entire operation to Alghero effective the 15th of August 1944. It was short-lived as they moved to Foggia, Italy on the 4th of September 1944.
No.272 (F) Squadron
The squadron arrived at Alghero on the 3rd of February 1944 with their Bristol Beaufighter Mk.VIc’s, Mk.X’s and Mk.XI’s. They moved to Foggia, Italy effective the 15th of September 1944. Incidentally, the Beaufighter Mk.VIc was withdrawn from squadron service during February of 1944.
No.284 (A/SR) Squadron
This squadron arrived at Alghero on the 1st of March 1944 with their Supermarine Walrus air-sea rescue aircraft. The same month the Vickers Warwick ASR Mk.I was introduced into squadron service. No.284 Squadron remained at Alghero until transfer to Elmas, Sardinia effective the 17th of September 1944.
No.458 (GR) Squadron
This R.A.A.F. Coastal Command squadron arrived at Alghero on the 25th of May 1944. At the time, the Aussies were operating the Vickers Wellington G.R.Mk.XIV. The squadron moved to Foggia, Italy effective the 3rd of September 1944.
No.682 (PR) Squadron
This Supermarine Spitfire P.R.Mk.IX-equipped unit arrived at San Severo, Italy on the 8th of December 1943. While there, it maintained a detachment at Alghero. The squadron re-equipped with the P.R.Mk.XIX in September 1944. The squadron was disbanded on the 14th of September 1945.