I've been using Bertrom Denoiser for a while now in all of my vocal chains to clean up the recording from an occasional noise and background hiss. It basically works as a multiband noise gate, which allows it to have almost no latency and accurately target random sounds you might get in a home production setting. Set a treshold, set the frequency range, get cleaner sound. Simple. You can manipulate the strength of the noise gate at every frequency and preserve clean areas without hiss or random noise. The plugin's use isn't limited to vocals either, it can work well with any instrument recording.
They've got two versions of this plugin: Classic (Free) and Pro (25$ at the time of writing)
The main difference between them is that you can only set one gating treshold for all frequencies in classic, whereas Pro allows to tweak a treshold for each frequency. I've found that using two classics for low-to-mid and mid-to-high frequencies is sufficient for a difficult recording, but most of the time one is all you need. That said, I bet you can really do some good clean up with Pro.
Comes with versions for Windows, MacOS and Linux as VST3, AU or AAX, as well as for arm64 and apple silicon processors.
Bertrom Denoiser Classic (Free): https://www.bertomaudio.com/denoiser-classic.html Bertrom Denoiser Pro (25$): https://www.bertomaudio.com/denoiser-pro.html
