This is a webpage produced by Jonathan Rupprecht, who is a lawyer, pilot and certified flight instructor. His information includes citing specific FAA requirements pertaining to complying with the logbook requirements and a review of both online services plus hardcopy paper options. His provided information also includes the upkeep of proper FAA maintenance logs as well. Yes he does offer a $10 paper logbook for sale on Amazon but more importantly he also offers this free for you to print out if you wish. The most important aspect of this information is that he takes you step by step on how to create and maintain a proper logbook practice that will more than fulfill the FAA scrutiny if you are ever asked to provide such documentation.
https://jrupprechtlaw.com/drone-logbook
https://jrupprechtlaw.com/drone-logbook