What platforms do you like for distribution and marketing?

I have tried quite a few platforms for distribution. Reddit is among those platforms which can be considered good to get customers. It is not because I got a lot of customers from there, but rather it has almost all type of audiences for people to get started. People also suggest to post on IndieHackers platform, but personally, that is not where your market exists unless you target indie devs or so.

I have seen posts where people tell that they have started marketing via cold outreach, ads, social media (tiktok, instagram), but that didn't work at all in my case.

What do you think? Do you think there could be a universal method fo indie devs to market?