Social media strategy for B2B SaaS businesses

Hey. I'm about to launch my app after 4 months of hard work and thinking of going hardcore on organic reach, X, and LinkedIn. I plan to undulate between marketing and development, 1 on marketing and 1 week on development. Schedule the marketing for 2-3 weeks at the time. I want to ask people who have managed to bootstrap a business with organic reach... How does your schedule look? How many posts do you do a week? Do you have a newsletter? What's the conversion difference between your newsletter and landing page? By the way, it's a B2B SaaS in the construction space. Ps. I asked people who have done it. Not you! If you know what I mean.