Welcome !
Good question on where to discuss startups, there is a commnity revolving around it https://peakd.com/c/hive-112721/trending but I don't thin anyone is posting on it right now, so another place would be https://peakd.com/c/hive-152386 which is a community revolving around hive apps.
Can you share some of your startup names ? I'd love to check them out.
And if you stick around for a bit could you make a post on your first impressions, what you liked/disliked ? It's always great to get some feedback from people who see things with a fresh look.