Of course any link one goes to, one has to check each reference that it is according to Torah – even a “frum” one like the coffee room has also to be checked all the time – one can’t assume anything and one doesn’t. The best thing is to directly negotiate with a reputable midrasha( that is, all teaching according to Halacha – Orthodox Jewish law) regarding fees or ask if a scholarship situation exists.
Going into such a midrasha it is really almost impossible to control the “environment”-the clothes of the girls, their attitudes in the face of what they are being taught, their behaviour, etc – could be a lottery. Unfortunately some of the “best” midrashot had pictures of the most appalling dress.
Nisia Tova(have a good trip).