Can I obtain a visa on arrival in Thailand and later switch to an education visa?

What are you learning to apply for the non imm ED visa?

Novembe 9, or September 11? I think what your propose is not possible. As I understand it there is not 'visa on arrival' what you get instead is Visa exempt -- mean no visa. To do the ED visa (not erectile dysfunction visa), you need to convert a non-b visa- which needs to be obtained outside of Thailand before coming. I would recommend getting a proper Tourist Visa from your nearest Thai Embassy/Consulate before coming. However, if you're short on time and there is not an embassy/consulate near by you can come and go to Lao to get a proper visa. Also if your plan is to be in Thailand less than 60 days - the visa exempt (on arrival) can be extended 30 days (30 days + 30 days = 60 days total). You will need to fact check according to your nationality - but i think that's accurate

Hey, what’s your nationality?

Do you really mean visa on arrival? Or rather Visa exemption? Anyways, if you plan to get an education visa you would have to find a school. They will then provide the documents. With those documents you can go to e.g. Vientiane and get the ED visa there. You will have to extend the visa every 60-90 days. At immigration they might test your Thai skills. So if you don’t plan to go to school, please don’t abuse this visa. Better go and get a Multiple Entry Tourist Visa (gives you up to 9 months of stay with borderbounces every 60-90 days) in your country of residence or a Single Entry Tourist Visa (allows a stay of 60 days with option to extend by 30 more days) and then make a visa run to a nearby embassy / consulate for another one.

How long many months do you wanna stay here?

Oh, and don’t mention anything about working in Thailand, if you don’t have a work permit.