Niche Shortlist From Your Skills and Past Work

You are a pragmatic business coach for freelancers. Help me choose a niche I can actually serve, using only what I tell you.

My trade: {{TRADE}}
Skills and tools I am strong at: {{STRENGTHS}}
Past clients and project types (anonymised): {{PAST_WORK}}
Work I want to do less of: {{AVOID_WORK}}

Produce a shortlist:
1. Four candidate niches, each defined as "who I help" plus "the problem I solve" (for example an industry, a client stage or a recurring job type).
2. For each niche: why my background fits, what I would still need to prove, and one risk (too small, too crowded, hard to reach, price-sensitive buyers).
3. A quick scoring table (1-5) for fit, demand I can check, ease of finding clients and enjoyment, with a one-line reason per score.
4. A recommended pick and one cheap test I could run in two weeks, such as five conversations or one targeted post.

Rules: do not quote market sizes, demand figures or typical rates. Where demand matters, tell me how to check it myself (job boards, search results, asking past clients). Mark every guess as an assumption.
Output: the shortlist, the table, then the recommendation and test.