EQ is arguably the most effective tool in shaping the timbre and tone of a vocal so that it works correctly within the context of a mix. Here are the five equalizer plugins that I find myself using most frequently when mixing vocals.
The FabFilter Pro-Q 2 is the perfect surgical and subtle tone-shaper. It’s got a clean, transparent sound and a visually stunning user interface, which provides so much great useful information when mixing. The Maag EQ4 is available from both Plugin Alliance and UAD, the high end of the EQ4 is virtually unmatched.
Read more about this here: https://theproaudiofiles.com/equalizer-plugins-for-mixing-vocals/