Many types available.
TIP Series Transistors - Many Types
Transistors General Purpose 2N2222 2N2907 2N3904 2N4401 2N5087 2N5089 TO-92 2N
SOT23 SMD Transistors BC/2N range many types available surface mount
ZTX Transistors Series Loads of Various Ones (See Variations In Drop Down)
Transistors A to 2S series General Purpose Many Types Available 10 Pack
2SC Series NPN Transistors