You should create a cool website. All sponsors will see your website first of all. So your webpage must be awesome. I recommend you to look at some Wix Website Templates
You need to make a website, to make new clients etc. If you are going to connect your startup with crypto, you can read more at https://blockchain.intellectsoft.net/blog/consensus-protocols-that-meet-different-business-demands/ where are a lot of blockchain technologies reviews and information.
It is wonderful that you have an idea how to make money and maybe can even give others work later. I myself once started the same, but I had no money. I was lucky I won them in a online gambling canada and was able to do my business. You can also try your luck, maybe you will succeed just like me.