To live permanently in Thailand, you can acquire a long-term visa, such as the Non-Immigrant O (retirement) or Non-Immigrant B (employment) visa, and renew it yearly. You'll also need to meet specific visa requirements like financial support, health insurance, or work permits, depending on the visa type. Another option is applying for Permanent Residency, which has additional qualifications, including living in Thailand for a minimum of three consecutive years with a valid visa. It's recommended to consult an immigration lawyer for guidance on the most suitable option for your situation.