If you haven’t signed up with any free web-based mail today, chances are you will not get the simple and ideal email address you will want. Some would resort to other things is to put numbers or play around with initials.
For some services which allow you to get the name you want, ISP’s normally can give them to you. This also depends on the number of subscriber there are but depending on what actual email address you want, the chances of landing them with the providers are usually better.
Remember, these emails are your identity on the web. The more you get them, the better it is for you to be recognized.