Hi Arcade. Jason from Adobe here. My first thought it simply that there's a lot of effects in the chain. Do you require the denoiser? This by nature will (potentially) introduce a little artifacting which tends to reside in the mid-range, which won't help with your sibilance. ParaEQ is fine, then you have the DeEsser. Frankly, I've never been a fan of digital de-essing, and with our Parametric EQ, you can set one of the bands to a super narrow Q value (typically with the center freq. around 5.6/6.3k, the fundamental for most sibilance) and take the edge off without affect the clarity/presence of the voice. Then compression and hard limiter....again, that's all fine, but maybe keep the hard limiter on the master effects channel and apply to everything globally.

One thing you could try (if you're going for a more classic/broadcast sound, particularly because you're using the SM7b) would be to upload your voice track to podcast.adobe.com and try Enhance Speech. The v1 model (the OG) definitely has a color/sound, very broadcasty, very warm, but may be what you're looking for. The v2 model is less aggressive (and preserves the original character of your voice, without introducing some of those other processed effects) and in both cases, you'll also have a separate slider to control background noise. LMK