Many monasteries of the Solesmes Congregation that do the OF Mass, do so in in a very traditional manner. The Benedictine nuns just outside of Montreal, for instance, pray the entire Benedictine Divine Office, using St. Benedict’s original schema adapted for the post-Vatican II liturgical year, in Latin, and in Gregorian chant. They also have the OF Mass in Latin daily, also with daily Gregorian chant. They are conservative, orthodox, and cloistered behind the Papal Enclosure. But they never do the EF and probably never will.
Having been closed to monastics for the better part of 20 years, I would strongly suggest that the OP discern her charism before considering how they celebrate the liturgy. All orders and congregations have their peculiar charisms and cultures and practices quite apart from the liturgy. Being a square peg in a round hole will end up causing a whole lot of grief for everyone involved. Plus, at least for Benedictines, the whole community gets to vote on whether a postulant can make temporary, and then permanent, vows. And Benedictines have much variation in culture from monastery to monastery as each house is self-regulating on internal discipline and liturgy. So it has to be a good fit all around.
I know of one case of a postulant at the abbey I’m attached to, some 10 or 11 years ago, who sought out our abbey because it was the most “traditional” men’s order in Quebec. The novice master quickly discerned he was there for the wrong reasons, not to be a Benedictine, and he flushed him in postulancy. He eventually found himself as a postulant in a very traditional abbey that uses the EF Mass and the pre-Vatican II Divine Office. It was exactly what he was looking for. Except that he washed out of there too. It was quickly found out that he was there for the liturgy, not to be a Benedictine, which is an entire way of life, and can be a very exacting one indeed regardless of the form of the liturgy.
There’s no fooling a good novice master. If you’re not there to be a good Benedictine, Carmelite, or whatever, you’ll be figured out in no time and you won’t make it past temporary vows.
Sorry to be so harsh, but it’s better you learn this before the heartache of a failed noviciate.