You can buy tabs on hallleonard or go to ultimate guitar (it’s basically free except Tab Pro, if you buy subscription you have backing tracks, fretboard etc.) third option – just search in Google, type in for example – Hail to the King tab and choose highest rated, also you can read some comments, people often give reviews so you will know if the tab is correct.
CifraClub is really good channel, it’s in Spanish language but that doesn’t matter because you have tabs.