I was using https://proranktracker.com/ as a rank tracker, which I saw in the topic opened by your friend, @Tyler. However, the site reduced the free version from 50 keywords to 20 keywords. This has made it practically useless now. Do you know of any good, up-to-date sites that you use?
Serpfox has 10 free keywords. For paid options, I recommend Serpbook hands down.
Whatismyserp is super. It is completely free.