What are the options for opening a high-interest savings account in Thailand for marriage visa requirements?

In Thailand, finding a savings account with interest rates comparable to U.S. CDs (3.50-4.50%) is challenging for foreigners. Most fixed deposit accounts offer interest rates around 1-1.5%. However, SCB Easi Pass offers 2.5% with instant access, which meets visa requirements. It's also noted that immigration may require proof of funds from the account, and while some have successfully kept money in fixed accounts for visa extensions, experiences can vary by location. Additionally, concerns were raised about the stability of the Thai Baht over time.