@kentcdodds 2 really good options that I like:
1. @zapier
You can schedule webhooks: https://zapier.com/apps/webhook/integrations/schedule/1749/check-for-webhooks-every-day
There is an official @Netlify integration:
https://zapier.com/apps/netlify/integrations
2. @webtaskio
You can configure a cron-like schedule to make requests to your Netlify Function.
My tweets and posts live here on my own domain these days.
You can explore them here and follow me on Mastodon instead of Twitter where I'm not currently active.