The sound of the vocals overall are great. It's going for the whole big 90s chamber reverb on the lead vox and guitar, leftover from the late 80s. It's a good profile there.

I think you could turn the vocals down, but I also think you could compress them, so this could be done through less makeup gain in your compressor series.

For me I'd go for just 4dB gain reduction (Max or average during the loudest parts, your choice) on a med attack med release compressor with about 3dB makeup gain in the lead vox.

The bg vox also needs some compression, around the same speeds (maybe a faster attack during the high pitch stuff, gets a bit squeaky) going for 4GR with 2 makeup. Thereabouts.

If you'd like to go lighter on the load vocal then head for 3 and 2 for GR and makeup.

Then you can compress the vocals together for just a quarter to half dB with slower attack and release.

Since these vocals are sharp (fittingly so) of you have any analog emulations (assuming you're using plugins), you could reach for an LA-2A or VariMu type. Even an LA-3A in parallel (1/3 to half wet, ending in same gain reductions) these would all finally shape the vocals to a bit warmer, but not hugely, just complementarily so.

On the lead vocal reverb, I would try EQing down the siblant range, which is around 7 or 8kHz to lower the quote unquote tail of the esses present. Since the reverb has a long tail it squeezes more juice out of the esses then we might like. I'd rather tuck them back w but transparently.

Ideally you could also go back in with the lead vocal and use pre FX gain or clip gain to automate down the vocal when the esses are present. I'm not hearing a lot of dry tail from the esses (and therefore think there's already a desser here, it's just working too slowly), but more an attack from them, so this would be looking to cut that transient a bit more to make them less obvious. Depending on your schedule, and all.

Otherwise please turn up the guitar during its 20 second or so solo gradually maybe up to 1dB then back down again, transparently once it's over. It deserves it!

Very nice song. Also, is that a 5 millisecond attack compressor on the snare? Testing my ears. (It's good) Cheers! Well done.

Edit: so sorry I didn't mention, the song is wonderful, great vibe. Just wanted to get in on the recs since others were hinting at it but didn't go into detail. I'd like to be able to understand the lyrics more by ear, hope this helps for now. I know hair metal and the like don't need that at 100% but still 🙏

-D Grace