I’ve lived it.
The simplest answer is usually to copy the pricing from the closest public company you can find that is vaguely similar.
It’s OK you are doing something different. But someone else out there is selling a product to at least similar buyers. Or at least, that is providing a similar amount of value.
Copying that pricing. Salesforce, Hubspot, Box, Evernote, Twilio, Slack, Atlassian, etc. etc. … these folks have figured out good pricing models.
Don’t reinvent the wheel on pricing. Even if you are actually reinventing the wheel.