* nakaka-engganyo (more emphasis on allure)
* nakaka-bilib (more emphasis on admiration)
* nakaka-interes (more emphasis on interest)
The best translation will depend on the specific context of your sentence.
Here are some examples:
* Nakaka-akit ang mga kulay ng sunset. (The colors of the sunset are fascinating.)
* Nakaka-engganyo ang kanyang mga mata. (Her eyes are fascinating.)
* Nakaka-bilib ang kanyang talento sa pagkanta. (Her singing talent is fascinating.)
* Nakaka-interes ang kwento niya. (His story is fascinating.)