I'm not claiming 'considerable' - 9 dives, 1 trip.
The Aeolus had 2 large square holes in the top, dropping down into a large room with part of the wall open. If everyone gets on their knees (bottom's rough, by the way) and holds still, it's likely a sand tiger will circle around and get close enough for some nice photos. But if baitfish are present in high numbers, it can look a bit like a 'fish blizzard' (also kind of neat).
My dive of the Caribbsea, the sharks were hanging out over the wreck. Ever see a 'V formation' of geese in the sky, & wonder what it'd be like to join it? Well, replace the geese with mid-size sharks...that was my intro. to diving with sand tigers. It was a different experience vs. the Aeolus, but I liked both.
Keep in mind the captain won't want to 'crowd' a wreck; another boat may get there first, weather/sea conditions may be problematic, any planned specific wreck for a day is tentative.
I was happy with Olympus Dive Center; from reading I've been under the impression Discovery Dive Center (? IIRC) is similar, so an option. Do you want a big boat, or a smaller boat with fewer people? Be mindful it's a lot trip in the Atlantic ocean to those offshore wrecks.
Richard.