https://crumplepop.com/how-to-remove-humming-sound-from-audio-13-types/ I do really love CrumplePop's audio lessons as video is more my bailwaick than Audio, but as an editor I end up having to do so much audio.
https://crumplepop.com/how-to-remove-plosives-in-adobe-audition/ Another great Audio tutorial from CrumplePop.
https://crumplepop.com/how-to-remove-background-noise-in-davinci-resolve/ Another must read audio tutorial from CrumplePop!
https://www.provideocoalition.com/review-crumplepop-audio-suite-from-borisfx/ This does sound like a good audio suite for $599 for perpetual or $23 a month when billed annually. And with simple controls and AI smarts, these could be a great solution for us editors that do more and more audio work every day.
https://crumplepop.com/how-to-normalize-audio-in-premiere-pro-3-methods/ Another great post from CrumplePop on Audio in Premiere Pro.
Another great Audio Tutorial from CrumplePop.
https://crumplepop.com/noise-cancelation-software-8-tools-to-remove-noise/ Another interesting audio article from CrumplePop.
Marco Sebastiano Alessi has an in depth article on How To Remove Hiss from Audio in Premiere Pro a Step-By-Step Guide.
JG McQuarrie at Crumblepop has an excellent post on 7 ways to remove Plosives, in both recording and after the fact (always worse but most people will want you to fix it in post).
Audio is not my forte, I can do it and I have gotten better, but I am a video editor, so lessons in Audio in Premiere are always of interest of me. Here JG McQuarrie at Crumblepop does a great step by step guide on reducing Echo in Premiere Pro.