Stay away from lengthy names, abbreviations, misspellings, and hyphens. Their marketability is not very high. You can register names with a prefix, if the prefix is easily explainable. Don t risk buying a group of useless domain names. The most recognizable prefixes are e and i .
Many people use full words as prefixes or suffixes.
For example, the word Shop . To use a letter as a prefix, try one that makes sense, like b , r or u as opposed to w or q . If you create a new prefix, buy a lot those names and market them as a group. As an unknown prefix in the marketplace, individually they have little or no value. Marketing them as a large group creates a valued domain name community that is easier to brand.