Ilford Galerie is good. Another nice A4 paper which seems on semi-permanent â€˜offerâ€™ in some camera shops (Â£10 for 40 sheets) is Fuji Multijet 270gsm, Gloss or Satin (green & purple pack)
If youâ€™re prepared to cut your own, even cheaper is something like Instant Dry Satin 240gsm - Â£30 for a 17â€ 30m roll last time I checked from DCP Systems near Sheffield http://dcpsystems.co.uk/media/display.html
Obviously youâ€™d get two A4s out of the 17â€ width = about 200 sheets?
edit - oops, no idea why I assume you want A4 ...