The trick to making advisory profitable is productising it: sell a clear outcome at a fixed fee, not your hours. "A Funding Review" — a branded report of every grant and incentive a client qualifies for, with deadlines and next steps — is something a business owner immediately understands and will pay for.
Because the research is done in seconds, the fee is almost all margin, and you can offer the same review to every client on your book. It's a new revenue line that scales across your base without scaling your hours.