I think there might be a market for something like this but it’ll be tough to access. I don’t think that cold emailing or paid ads will work in this market though. Cold emails, IMO, are better when you’ve got a product with a decent ARR. You’ve got to find the right kind of prospects, reach out to them, optimize, etc. Paid ads too might be tricky to pull off. Both those mediums will take time to experiment.
With marketing, the first thing I’d do is figure out use cases for this. What situation would someone be in when they want to use something like FormTide? They might be creating a static site, a blog, maybe with a static site generator. I’d make a list of some popular static site generators and write about how to create forms with them. There’s many of them in many different programming languages, so that might be a good way to access that market.
Other than that, what common issues does the average person face when creating forms? Connecting them to their CRM? Sending an email after a form submission? Email verification? If you can figure out some of these issues, you can write about how FormTide solves them. That will give you another way to get in front of your market.
Lastly, there are people who don’t need your service now but might use it in the future if they are aware of it. To get in front of them, you might write on topics that might be of interest to them even if they aren’t directly related to FormTide. For example, you could write about form design, improving form conversion, etc. This won’t drive you immediate business though.
There’s an absolutely incredible amount of competition in this market though a lot of it looks like abandonware. I found a couple of them that are priced very cheaply. To add to that, it’s not just the direct competition that is difficult; even companies like Segment might solve the same problem you’re solving. Marketing is going to be difficult — it is for any business — but it’s worth a shot.