What are the best visa options for my girlfriend with dual Romanian and Russian nationality to stay in Bangkok for a year?

The user is seeking advice on the best way for their girlfriend, who holds Romanian and Russian passports, to stay in Bangkok for a year. They initially considered a visa on arrival for 15 days, but found this inadequate. Suggestions from the community include applying for a visa exempt for 30 days with an option to extend for an additional 30 days, exploring the possibility of obtaining a Tourist (TR) visa prior to arrival, looking into education visas, or considering a business visa with sponsorship. Additionally, members mentioned the possibility of making visa runs and extending visas locally.