There are 2 main brands of safety cables in aviation. They are DMC and Bergen. You can select one of the safety cables according to SPM. Details refer to link: http://tedainc.net/safety_cable_engine_manual/
After brand selection, you need to decide the length of safety cable and kinds of ferrules.
http://tedainc.net/dmc_part_numbering_system/
http://tedainc.net/bergen-safety_cable_part_number_system/
More and more safety cables are used to replace safety wires.