I'm doing remote work in a major US city. I've been charging well above market rates for a while now, but haven't been able to break the $100 / hour barrier ye

I'm doing remote work in a major US city. I've been charging well above market rates for a while now, but haven't been able to break the $100 / hour barrier yet. I feel like my income is stagnating -- my skills and expertise are at the top of their game, but I just haven't been able to find projects where I'm able to charge more. Where should I be looking? Is there an effective way for me to change my approach?