Brand new Saas - what's your goto strategy for user acquisition?

Hello guys, I'm working on a new product uibun.dev - and I was able to make good progress on the engineering side. But I am a terrible marketeer, hence I don't know much user acquisition channels to promote the product. Currently my channels are reddit, twitter and IndieHackers, and just today I published a blog to explore SEO. What would be your advice for me to get first 1000 customers, and the various channels I should look into?