There are 4 “official” post-Conciliar breviaries for the Benedictines. The first, schema A is the traditional Benedictine schema from the Rule of St Benedict, with one exception, the psalms of Prime are redistributed in one of two ways, at vigils or the minor hours.
Schema B is a one week cycle devised by Dom Notker Fueglister in the 60s. It’s the most popular schema as it follows the Rule which provides for alternate schemas as long as all psalms are prayed in a week. There is no repetition so the psalmody is about 100 fewer psalms than A.
C and D are two-week cycles.
Benedictines with external apostolates may use the LOTH.
That said many abbeys have their own “house” schemas. It sounds like you may be heading to Douai Abbey near Reading. I spent a weekend there last month. They do have their own schema: Matins and the mid-day prayer are on a 4-week cycle similar but not identical to the LotH. It’s chanted in English. Matins combines the Office of Readings and Lauds. Vespers is on a one week cycle in Latin Gregorian chant. It follows the 1934 monastic antiphonary. Compline uses psalms 4, 90 and 133 daily.
Collects will be the same as the LOTH in all cases but the Benedictine calendar is different.
Douai Abbey does publish its schema on its website, but if that’s where you’re going, don’t worry you’ll be provided with the sheet music and booklets to follow along.