Two churches in Seville. Basilica de la Macarena has no online ticket listed; Church of San Salvador has 3 tickets and tours to book. The table and the two notes below put them side by side; the full pages have what to see, the ticket and the timing for each.
The basilica is free to enter. The museum of the brotherhood beside it charges a modest ticket and holds the embroidered mantles, the silver and the processional floats, which is where the money and the craftsmanship of Seville's Holy Week actually live; it is the part worth paying for. Guided tours of Holy Week traditions include the Macarena and cost several times that, and they are useful because the whole subject is opaque to outsiders.
The Church of the Saviour stands on a lively square in the centre of Seville, a ten-minute walk north of the cathedral, and it is ticketed; the ticket is combined with the cathedral and the Giralda, so buying it here, where the queue is usually short, lets you skip the long line at the cathedral itself. That is one of the most useful practical tips in Seville. An audio guide is available.