I’ve shifted to bidding fixed rate on projects around a defined scope. It’s a lot more work upfront to define a clear statement of work, but it has allowed me to stay above USD$200/hr without customers batting an eye - whereas my rate was consistently a sticking point in negotiations.
My consulting mostly focuses around IT/digital strategy and the work product usually involves connecting together incumbent systems, and sometimes implementing new systems while ensuring they’re deeply interconnected with the rest of an organisation, aligning them closely with biz process, etc. My customer is always a business unit lead so the budget tends to be more aligned with top-line outcomes.