The 2 oscillator circuits beneath are well suited for making use of crystal oscillators in collection or parallel method: Modeling of nonlinear micromechanical resonators and their simulation With all the harmonic‐equilibrium process PDF The type of amplifier you will require will rely upon the frequency. Op-amps may go at low-frequency https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html