Launching on PH: What should I do to prepare?

Start compiling a list of people you can reach out to for support right now (friends, family, people on know on Twitter, etc). When you do reach out ask if they'll drop a comment or questions to help get the conversation going. Conversation drives more interest/upvotes and gives you an opportunity to talk more about your product.

I shared my experience launching on PH here: https://www.indiehackers.com/post/from-product-hunt-to-16-285-in-sales-827d57e7e8

Have a list of people that can support you there, friends family potential customers etc

Prepare great copy and videos that will help you on D-Day.

Make sure you're ready to be as responsive as possible

If you can find a Top Hunter to support your product that would also increase your chances a lot.

I recently published this post on Indie Hackers, feel free!

https://www.indiehackers.com/post/how-i-was-1-on-product-hunt-for-18-hours-and-then-finished-2nd-1fbbfcda9c

These two guides helped my friend get his product to the top. (Full disclosure - haven't tried it for my products yet).

https://www.guerrillahub.com/product-hunt-ranking-factors/
https://www.demandcurve.com/playbooks/product-hunt#wjlstf9nwfbf31u65lyxdv