a good keylogger?

I recently learned about elite keylogger, and about its “rootkits” so i tried removing it. And finally, after ALOT of work, i think I finally got rid of all of elite keylogger’s components. My question is if anybody knows of a well known trusted keylogger that is good and has no rootkits/other stuff that isnt good for your computer or cant be removed easily. I dont NEED a keylogger, i just think it would be helpful since alot of people use my computer.
Thanks in advance.