@Brandon ***********
I applied for my 90day marriage visa online (USA). They didn't ask for proof of funds. I don't know if that is a US thing or not. Also, I have been able to apply online while not being in the US. The US embassy seems flexible on the matter regardless of what the eVisa website says. That is the US embassy the I am not sure about Brazilian embassy.
I also work remotely, without any kinda of work permit. Up until recently remote work was kinda of a unheard concept in the Thai government. This group has individuals with opinions and not always do those opinions matter, the immigration office nor embassy, does not consult this group to make decisions. You will find good advice here but not all the advice is good.
If I were in your position, I would look for more remote work instead of trying to find work locally. Unless of course you already have something lined up.
It's possible to get a 1-year marriage visa extension without funds, sometimes. You would go to an agent and they would charge you a few bucks. They would deposit the funds for 5 minutes, you would get a bank statement, you would transfer the funds back to them. That agent would have a friend in immigration (tea money).