This week, the London Oratory keeps the Quarant 'Ore in what I think is arguably the best church in England for the purpose.
The Solemn Mass of Exposition (OF Latin) is tomorrow evening at 18:30, with a Procession of the Most Holy and Benediction; and the Church is then open until 22:00 (I understand).
On Wednesday the Church is open as usual from 06:30, and as well as the usual Masses there is a Holy Hour at 18:30 : for some reason I've never quite understood they don't appear to have have the 'Mass for Peace', at least not as an announced Solemn Mass as part of the event. The Church closes, I believe, at 21:00.
On Thursday the Church opens at 06:30 and there are all the usual Masses, with Lauda Sion and Solemn Benediction at 19:00 before the Quarant 'Ore ends.
Details of the Music are available here.
Please, if you are anywhere near, and can possibly get to the Oratory, even if only for half-an-hour during the Quarant 'Ore, drop in and say a prayer for the Holy Father, and for the life of the Church in England in these difficult times.