Hi,

You can prepare for NEET by installing the Gradeup app where there are a number of free mock test relating to NEET. Also you can refer to the website https://www.etoosindia.com/campaign/jee-neet-free-trial.do?gclid=Cj0KCQjwj_XpBRCCARIsAItJiuQ4aig-RyAhN_uNGykhw9oAyslOcA8Zu4YcdHPP4MNfVxUUrApFSJ4aAvh_EALw_wcB

And

https://www.google.com/amp/s/www.embibe.com/exams/neet-mock-tests/amp/

for getting a free trial on online mocks.