Private rented accommodation varies widely. In some areas it is cheap and plentiful but in other areas it can be hard to obtain and expensive.
Rents can be expensive in some areas. If you are on benefits or have a low income you may be able to get housing benefit to help you pay the rent. Landlords often charge more rent than housing benefit will cover, and you will have to make up the difference.
Private rented accommodation is usually advertised in local papers, shop windows or through agencies. It is sometimes possible to find and move into a private rented place quite quickly. However, you often need a deposit and rent in advance. If you find a place through an agency, you may have to pay agency fees as well.
You may be able to apply for a budgeting loan to cover rent in advance. Whether you get a loan or not depends on your circumstances and you will have to pay the loan back, usually a fixed amount each week.
In some areas there are bond schemes, which help with the deposit.