There are many local organizations that can help you in the citizenship process, and many offer assistance in languages other than English. See the links below for organizations in the Lynnwood area and beyond (left box), and organizations that offer assistance all across the country (right box).
These organizations provide different types of free Citizenship assistance - from help filling out forms, to offering study sessions for the Citizenship test - in English, and many other languages. Many have offices in Seattle, but some have locations in Snohomish County as well. Visit their Websites and contact them for more information.