There are several threads on this forum, even on the first page of this section, about advertising tips, touring possibilities and seasonal trends in the sex industry so a quick browse of those might help you.
Other than those... I'm not sure what else could be suggested. It's generally more useful to make your own assessment about trends in the precise area that you work in using Punternet and Adultwork et al - you can see, for example, if Ms Rumpybottom is super-popular and living next door to you, charging ?20 per hour all services included, by checking out recent AW feedback and Pnet reviews and her profile and website. You can see whether perhaps a crack team of 200 Lithuanian Babes have moved into a flat on the other side of you to open a 24/7 brothel, too. Or maybe whether there are just tons of fake profiles and/or gross bareback crackhead profiles in your area so maybe you just need to modify your AW profile and/or website to make it clear that you are 200% better than that and that clients mustn't be put off by the riffraff.
Sorry if you've done all those things already or are already tired of sifting through AW's heaping piles of rankness trying to find out about your 'competition'.
Also, don't forget to look at EVERY SINGLE website for every other hussy you can find to see what directories etc they're listed on - they'll have all their banners on the front page, usually, or a Links page. Also, setting up a blog and swapping blog links with all of us here can be a useful thing to do - loads of my clients adore the idea of blog-surfing their way to other classy birds like me.