Marketing is so hard!

I have built my SaaS startup FireChatbot (https://firechatbot.com) for over a year. Now, that it's ready and I'm convinced, that it is by far the best AI Chatbot for websites on the market, I'm running into the problem, that I don't know how much capital to allocate into marketing and in which way.

I feel like I would need tens of thousands of Euros to get into a situation, in which FireChatbot finally pays my bills, but I don't have that much money.

Which ways of Marketing worked best for you? Does anyone in this community have any tips & tricks for me?

Thanks so much in advance!