To apply for the DTV visa, you should submit your application online through the eVisa website or from your home country. It's essential to check the specific requirements and ensure all necessary documents are in order before applying. Joining online groups, such as the Destination Thailand Visa (DTV) Facebook group, can provide additional tips and support. Many users recommend merging your documents before submission and also mention resources available near immigration offices.
Best to apply from the homecountry, where they know about forms and documents from that country, which lowers the risk of having to supply additional documents, making the visa process shorter.