Actually facecheck.id worked very well for me for a while. I could search profile who are private as well. And its ok if I dont get to see full details but being able to see that they have just couple of hundred followers(like normal ppl), able to find full actual name and be able to do bit more search online has provided me with information I needed. Its just credit based now and bit more expensive to use compared to other search engines.
Girls who are professional escort, full time sugar baby etc. are also social influencer these days and many of them have open profile on Instagram, TikTok etc to get more subscribers. Which can easily lead to Onlyfans page or other sites.
Thank you for your replies. I will post back here if I am able to find a reliable solution and works for me.