For an Estonia tourist visa, you must demonstrate that you have sufficient financial means to cover your stay. The requirement is generally set at 70 euros per day of your visit. This means if you plan to stay in Estonia for 10 days, you would need to show proof of a minimum bank balance of 700 euros (70 euros x 10 days).
You can demonstrate your financial stability by providing recent bank statements and pay slips. If you are being sponsored, your sponsor will need to provide a sponsorship letter along with their financial documents, such as bank statements and proof of income, to show that they can support your stay.