In this tutorial Echo Sound Works covers a quick tip and trick that allows you to create a more controlled vibrato effect.
Massive’s vibrato is in the OSC tab. It will affect every oscillator evenly. That can become a problem with certain sounds. Did you know that there is an LFO wave shape that is specifically designed for vibrato?
Using the Vibrato Waveform LFO to modulate the pitch of only one or two oscillators can really give you a lot of control over the vibrato. This is especially useful for super saw sounds.