Early stage valuations, before Series B are very subjective. And it's best not to spend too much time on them.
There are 4 main methods, and you can so several of them too, and weight them.
20% method: The best way to value your equity is the 20% method. How much capital do you need to reach the next round? That amount equals 20% of your equity. Of course this needs to be within reason, so do some homework. See the next point.
Ask around: Read up, ask around, look at trends, see how you fit in the box, it isn’t exact and can be sorted out
Equidam: You could also check out this global startup valuation software.
Don’t set the price: talk about how much funding you need, and what you will do with it. Then in discussion work towards the 20% method, and talk about relevant deals in the market as a guide.
Here is a simple valuation template.
https://embed.notionlytics.com/s/V0c1SU5sRnpjREo1Y1VaYWNIaDFVVXBZYVdvPQ==