Bellinghome School of Music - Drumbit is a FREE online drum machine / metronome which makes it more fun to play to a beat. It allows you to program your own drum
Best Free Drum VSTs: Meet the Free VSTs That Don't Suck
Get Keyboard Drummer - Microsoft Store
Drum Machine vs. Sampler: What's the Difference?
Best Virtual Drum Software Programs – Free and Paid | Masters of Music