Try a different domain suffix. So, for example, if you are looking to buy redbrickcompany.com but this is already registered, you could try different permutations, such as redbrickcompany.biz or redbrickcompany.info. Alternative naming conventions may also help you, for example redbrick-company.com, but be aware that in business this always has the potential for someone to type in your domain name without the hyphen, and potentially land on a competitor website.
