First of all, I'd think appropriate venues would be a good way to go. Gay/trans clubs, bars, etc. could lead to acquaintances or clients who have the proclivity.
But even there, spending some time flirting with a potential f-buddy or date or customer and then just announcing something like, "It's 300 for hour" could lead to lots of trouble, including criminal charges or worse ... I'd think.
I know 3 trans women personally. All sweet gals. I can say that I'm rather attracted to one of them sexually, but I've never been in a situation where it seemed anywhere near appropriate to even hint at the matter. (For one thing, I'm about 20 years older and can't imagine that she would be interested in sex work, but MAN if I ever found out that she was into it, I'd be getting all flirty, as a by-the-way saying stuff like, "Lynda, I have always found you tremendously attractive" to start.)
If you've got a good (sorry to put it this way) product and service to sell, I think it best just to stick with trans escorts malls, but I'm no expert.
I suppose personals ads and social media is another way to go. Building something like an "influencer" on IG, X/Twitter, Bsky, or OF could get some drooling followers who might be grateful to open their wallets for you. Of course, the material would need to be enticing.