Room to rent in Hertfordshire

I am a working professional looking for a roomshare with around 2-5 rooms in the Hertfordshire area, especially St Albans or Harpenden. I currently work in Hatfield but will be relocating to Welwyn Garden City in October. I will be driving to work so parking would be a bonus. I would ideally like to share with people who enjoy sitting in the communal area and being sociable every now and then.