breadboarding wire is simple solid core wire. This is typically sold in spools of varying lengths and many different colors. The commonly recommended
Breadboarding Wire Bundle
Jumper wire Set - 65 piece for Breadboards
5.5 3-pin JST to Breadboard Jumper Cable - RobotShop
Breadboard Jumper Wire Pack (200mm&100mm) — Arduino Online Shop
Breadboard Jumper Wire Bundle (70x) - RobotShop
Breadboard Jumper Wire Kit for Breadboard Prototyping Solder
My most used functionalprint so far. Dupont/breadboard cable
Breadboard Jumper Wires 65 Piece Assortment
Bestlus Breadboard Jumper Wires 20AWG Plus 140 Pieces