The right stack depends on your team size and channels, but a few categories are non-negotiable: analytics, CRM or customer data, email automation, SEO research, and creative production.
We typically combine Search Console and analytics for measurement, a lightweight CRM for leads, and collaborative design tools for rapid iteration. For ads and social, native platform insights plus a single reporting dashboard reduce thrash.
Avoid tool sprawl—master a short list, integrate where possible, and review quarterly whether each subscription still earns its place against outcomes you care about.