Family of 3 is looking for an accomodation in Bristol

Hi, everyone! My family will arrive in Bristol on 2nd July. We have 3 family members: 1 adult, a 14 yrs old daughter and a 11 years old boy. We are non-smokers without any pet. We are holders of BNO Visa. I am looking at a 12 months tenancy. I am a self-employed personal trainer in Hong Kong but have not found any job offer in the UK. Our budget is around 1200-1400 pcm. I am willing to pay a year upfront. Please kindly drop me a message if you know of or are renting a property in Bristol. Thank you very much.