It's quite common to create automatic topics.
There's unfortunately no way to accomplish this with the core IPS4, but you can utilize the IPS Zapier integration:)
1. Use the scheduler to create a daily running zap https://zapier.com/apps/schedule/integrations
2. Use the Invision Integration to create a topic https://zapier.com/apps/invision-community/integrations
You can use webhooks or any other Zapier integration like Google Sheets to get the content.