Check out the exam cram notes for CompTIA A+ Core1 certification. The exam notes is intended to help you in enhancing your score
https://www.tutorialsweb.com/CertNotes/CompTIA-cert/A+/aplus-ess-1.htm
Checkout this blog:
https://www.prepexams.in/blog/index.php/2021/02/18/certexams-com-labsim-for-comptia-a-cert/
Comptia A+ Labsim
Also check out A+ Practice Tests here,
https://dl1.file-download.net/download/aplus-core-download.htm
a site providing practice tests for comptia a+, network+, sec+ and others.