I'm not sure what you need the program to do, but there's a program from AIR Music Technology called Ignite that might be the sort of thing you're looking for:
@airmusictech Based in Germany, AIR Music Technology started as Wizoo Sound Design, one of the earliest pioneers in virtual instrument technology. The AIR team is responsible for the core of much of the effects offerings in Avid's Pro Tools software, and also developed a suite of award-winning...
airmusictech.com
If you're just looking for plugins that contain many different types of instrument sounds, there are a lot to choose from, some in the form of General MIDI instrument sounds, and others more focused on specific types such as orchestral, or percussive, or "world," etc. Try looking at the web sites for companies such as AIR Music Technology, Native Instruments, UVI, and of course Arturia.
Or, if you're looking for recording software, there are many DAWs to choose from, and most of them do come with their own sets of instrument sounds or plugins, plus they usually support the use of third-party plugins-- although this can vary by DAW and by edition or version.