The best alternatives to Snooze are FollowUp, Stable Reminders, and followupthen. If these 3 options don't work for you, we've listed a few more alternatives below.
Stable Reminders are email notifications sent directly to your inbox before important federal and state filings are due. These reminders are customized to your entity type and state(s) you've registered to do business in — and it’s all for free.
FollowUpThen was built to solve a problem we had while working together on other projects - not responding to each other's emails! We used it only internally for some time, making many improvements..and then decided there could be others with similar problems.