Machon Raaya seems to be a new BJJ…not for everyone.
I know someone who went to shoshanim and she LOVED it. Very warm and friendly, everyone was friends with everyone. The staff really cares about you. The schooling is academic toned down… there are girls that are super academics and girls who are not so academic. Its more of a low-pressure environment where you can learn and absorb without having to memorize the whole tanach by the end of seminary. You learn tons but you dont have the pressure to study 40 hours for a single test. There were papers but the teachers guided you and there was always help from the madrichot or aim habayit if you wanted it. There were tests and preparation to do, and girls did it. Its not a party school where no one studies or does the homework. Girls do it, but they aren’t driving themselves crazy over it.
Each seminary is slightly different and for specifics, ask those who went there!
Hatzlacha with picking a seminary!