To the best of my knowledge, none is mentioned. Pirate tactics most likely consist of waiting around locations where ships are likely to enter or leave hyperspace. This was the strategy employed by some pilots of Wilhuff Tarkin’s acquantaince, for example, though this relied on their prey having poor computing technology:
Lommite convoys typically comprised up to a score of unpiloted
container ships slave-rigged to a crewed shepherd vessel, now and then
with an armed gunboat trailing. Each container was capable of jumping
to hyperspace, but during those years before the era of affordable and
reliable navicomputers, the convoys had to navigate by hyperspace
buoys located along the route, and experience had proved that jumping
in single file was safer than going to hyperspace in clusters, even
though the maneuver left the containers vulnerable to attack on their
reversions to realspace.
Nonetheless, pirates were employing a similar strategy many years later, when Luke Skywalker encountered some. In this case, they were lurking in the Nanthri system, a popular jumping-off point—a hyperspace roundabout, if you will. Presumably such necessities were diminished but not eliminated by improvements in navicomputer technology.
“That small fleet was patrolling the sector of space that would come
“So? That’s what pirates do.”
Heir to the Jedi
Another possibility would be waiting in popular destinations. A pirate could catch a ship right as it was leaving (while it took its time getting out of the planet’s gravity well), or as it was arriving (since it has to leave hyperpace to land on a planet).
There are some. A whole array of non-Interdictor technologies for creating gravity wells are mentioned in Legends, but most of them don’t seem like the sort of thing pirates would be able to afford. There are relatively cheap methods of dragging ships out of hyperspace, however.
Pirates would sometimes drag massive bodies into well-traveled hyperspace routes, forcing any ship employing these routes to drop out of space.
The Argaian pirates led by Xer, father of Xim the Despot, intercepted
ships by towing asteroids into the narrow hyperspace lanes through the
Indrexu Spiral, and similar tactics are still used today. Another
strategy is to scatter small bits of ice, dust, or metal chaff
(popularly known as decant dust) across a hyperspace lane.
Star Wars: The Essential Guide to Warfare
Presumably it would take a lot of dust to be massive enough.
All the methods mentioned in canon could also be employed.