SiO2 atomic configuration for molecular input to LAMMPS

Dear LAMMPS Experts,

Please let me know, how can I define SiO2 or a-SiO2 to build the molecular input for LAMMPS. I have used Inorganic Builder (VMD) and utilized Topotools for the final input file. I am wondering if there is an alternative way of doing this as I have faced some issues with the current definition. There are available options mentioned on the website as: