Build a Keyword Research Strategy for a Service Business

Act as an SEO keyword research and content strategy specialist. I want to build a keyword strategy for my [SERVICE_TYPE] website to attract [TARGET_AUDIENCE] through organic search. My location is [LOCATION] (if local SEO relevant) and my main services are [SERVICE_LIST]. Design a keyword research strategy covering: how to identify the seed keywords for my service type, the tools and process for expanding into long-tail keywords, how to prioritise keywords by search intent (informational, commercial, transactional), a keyword map assigning target keywords to each website page, the quick-win keywords I can rank for in 90 days, and the competitive keyword targets for 12+ months.