Market Research to identify a Blue-Ocean Niche for a Design Subscription Business

I’m looking for an experienced market researcher or business strategist to identify overlooked B2B niches for my productised design subscription service. I’ve already researched this extensively using AI, but the suggestions have been too generic or based on industries that don’t have an urgent, recurring need for design. I’m now looking for thoughtful, human-led research and less obvious ideas. A suitable niche should: Already spend money on graphic design or creative production Have frequent, recurring design requests - not just occasional branding or website projects Be reachable through clear directories, associations or other channels Be large enough to support 50+ potential clients Have an identifiable buyer with an established budget Have approximately five recognisable specialist competitors, validating existing demand Not be dominated by small, founder-led, highly cost-conscious businesses Not require extensive education about why the service is needed Be reasonably resistant to Canva, templates and basic AI-generated design Recurring work could include social media assets, website updates, campaigns, event materials, presentations, email graphics, print collateral or multi-location variations. Deliverable: A concise shortlist of 10–15 niche ideas, explaining the recurring design need, buyer, market size, acquisition channels, existing competitors, advantages and risks of each. Please prioritise original thinking over AI-generated lists. When applying, briefly explain your market-research experience and how you would approach finding genuinely overlooked opportunities.