Two recommendations for everyone:
1. Check out the IntelTechniques workbook. You can a lot of this yourself for free. https://inteltechniques.com/workbook.html
2. If you want to hire someone, there are a bunch of similar options. This list was put together by a competitor, easyoptouts, but it seems pretty neutral: https://docs.google.com/spreadsheets/d/1M1YXTKmfs6rVDJHQVO3V...
And a question for Optery: I tried your service but it mainly found people who aren't me. Are you working on improving identification?