When starting out as a SaaS it's very important to get early feedback. So I curated a list of places where you can achieve this. There are three major benefits of posting about your startups here :

1.Early Feedback. 2.Backlinks which can help with SEO. 3.Exposer to users that can convert into paying users which will help further validate the idea. I got my first paying users from some of these websites.

Hope it helps.