What do you mean by "oscillators"?
There are lots of different types of oscillators.
Crystal oscillator
Voltage controlled oscillator (VCO or VCOX)
LC oscillator
RC oscillator
PLL based oscillator
Ring oscillator
Pls state clearly when u need help from others.
sorry if i wasn't totally clear, but the idea is found any configuration of oscillators, i'm design student, so i need to simulate different configurations, of course crystal oscillators are not included. Thanks!