This land is unclaimed, but you have to wait to get your character accepted before you can claim a territory. Then you post with your character, and say the pack name then. As for pack names, I normally see compound names like Goldenleaf or Silvermoon.
What I personally do is take a foreign language that I'm interested in, and translate some words in until I get something I like. Then I mess around with them a bit so that they don't sound forced. (Akitai came from something like 'fierce warriors' or something in Japanese.) Some good languages to try are the non-Germanic ones, or ones that aren't based off of latin. Some good ones to try are Ancient Greek, Japanese, Mandarin Chinese, and Lord of the Rings Elvish.