Create an SEO Blog Content Strategy

I need a 3-month SEO blog content strategy for my SaaS product. Help me find the right keywords, plan the content calendar, and structure articles that will actually rank.

Business details:
- Product: [your product name and what it does]
- Target audience: [e.g. "non-technical founders building their first SaaS"]
- Domain authority (if known): [e.g. "DA 15, brand new site" or "DA 35"]
- Competitors' blogs: [list 2-3 competitor blog URLs]
- Current blog status: [e.g. "no blog yet", "5 posts, no traffic", "20 posts, 500/mo organic"]
- Budget for content: [e.g. "writing myself", "can hire 1 freelance writer"]
- Primary goal: [e.g. "drive free trial signups", "build domain authority", "rank for buying-intent keywords"]

Build the full strategy:

1. Keyword research framework:
   - Identify 3 content pillars (broad topics) relevant to my product and audience
   - For each pillar, find 8-10 keywords using this criteria:
     - Monthly search volume: 100-2,000 (sweet spot for new sites)
     - Keyword difficulty: under 30 (realistic to rank for)
     - Search intent: informational or commercial investigation
   - Categorize each keyword as: top-of-funnel (awareness), middle (consideration), or bottom (decision)
   - Format as a table: keyword | volume | difficulty | intent | pillar | priority

2. Content calendar (12 weeks):
   - Plan 2 posts per week (or [X] posts based on my capacity)
   - Mix intent levels: 60% informational, 25% comparison/commercial, 15% product-led
   - For each post, provide:
     - Target keyword and secondary keywords
     - Working title (optimized for CTR and SEO)
     - Content type: how-to guide, listicle, comparison, case study, or explainer
     - Word count target
     - Internal link targets (which other planned posts to link to)
   - Sequence posts so pillar pages publish before supporting cluster articles

3. Article brief template:
   Give me a reusable brief template I can fill out for each article, including:
   - Primary keyword and search intent
   - Outline with H2 and H3 headings (aim for 5-8 H2s per article)
   - Competitor articles to beat (top 3 ranking for this keyword)
   - Unique angle or information gain (what makes mine better than existing results)
   - CTA placement: where to naturally mention my product without being salesy
   - Internal links to include
   - Target word count

4. Pillar-cluster model:
   - Design 3 pillar pages (comprehensive, 2,500+ word guides on broad topics)
   - Map 5-8 cluster articles to each pillar
   - Show me the internal linking structure as a simple diagram or list
   - Explain how this builds topical authority for my domain

5. On-page SEO checklist for every article:
   - Title tag formula that works
   - Meta description template
   - Header hierarchy rules
   - Image alt text approach
   - Schema markup to add (Article schema)
   - Ideal keyword density (hint: stop counting and write naturally)

6. Measuring success:
   - Set up Google Search Console tracking for my target keywords
   - Metrics to check weekly vs monthly
   - When to update or consolidate underperforming posts
   - Realistic timeline: when to expect traffic results (honest answer, not "overnight")

Make the keyword research table realistic for my niche — use actual keyword patterns, not placeholders.