What are the options for obtaining a long-term multiple entry Thai visa for at least one year?

To obtain a long-term multiple entry Thai visa for at least one year, you have several options: apply for a Non-Immigrant O visa, which can be available if you are married to a Thai national or if you are a guardian of a child. You can also consider a volunteer visa or a combat visa if you are participating in self-defense training in Chiang Mai. Another option is to apply for a multiple-entry tourist visa from your home country, but this typically lasts up to 9 months. Alternatively, enrolling in a Thai language course could grant you an ED visa. For long-term residency, you might also explore the Thai Elite Card, which offers visas for 5 to 10 years.