Make a list of names couple three words together semi-mispellings, etc. Go wild make it long, think of names that your target audience will easily remember, t

Make a list of names couple three words together semi-mispellings, etc. Go wild make it long, think of names that your target audience will easily remember, type in. Now go back through the list and pear it down to what works for your startup. Now see which ones you can get a domain from; best is .com, others you will have to be a bit more aggressive in marketing the URL unless the extension is part of the name. Be prepared to buy it on the spot (have a cheap registrar handy), hesitating (especially on some not so trustworthy whois services, might get your domain tied up by cybersquatters. Got your domain? Like the name? Make that your startup name. You can go through more filtering and refactoring the names and refine more it's up to you, but for budget conscious Id base the startup on a domain you already have then try to purchase it if its already taken.