https://campdavid.studio/
Clarity EQ claims to make it possible for any level of engineer and any type of recording set up, to get an ‘industry ready sound’.

Features
Input/Output metering and control.
Clarity control knob 0-100%.
4 band +/- fixed eq control.
Low, Low Mids, High Mid, High metering.
Compatible with most DAWs including Pro Tools,…Read More

https://expdsp.com/exp-filtertable
THERE IS ALSO A FREE VER
Changes:

New: Import Audio — Convert audio files into spectrograms or spectral envelopes.
Fix: [Ableton Live] Incorrect parameter values saved or loaded when using modulators (1.0.0+).
Fix: Issues with audio port detection method causing no sound output in some environments (…Read More

Key features
8-voice polyphonic synthesis.
Each harmonic is adjustable. The synth also features an oscilloscope showing the shape of the current wave.
2 ADSR and 2 LFO envelopes.
A modulation matrix that allows the user to link the envelopes to each harmonic individually or by octave.
https://temufra.gumroad.com/l/colours?layout=profile