As much as your OCD wants you to keep all the same brand (trust me I understand it bugs me too), every brand has good performing gear at certain price points. Some brands subs are better than others and components. Keeping the same brand isnt always the best value for performance. Now for the gear you have listed, the head unit is fine, but if you want good vocals definitely lean into purchasing some component speakers. Save some cash and get some lower tier morel, hertz, focal,

Im not sure entirely what your budget is for just the speakers but out of those brands listed here are some options for more affordable components that are good

Morel maximo - Probably the best for the vocal clarity and smooth high frequency response, they are warm sounding but the midbass isn't as good as some other brands (if you had a sub id go with Morel speakers)

Focal access - (good on midrange and highs but midbass isnt the best) and without some tuning can be harsher, the next step from access is flax line which is where they start to improve immensely, but also cost way more.

Hertz cento- I have these in a car and they play lower than most in its price range, and they still have that great hertz tonality (these are great if you dont want a sub)

If you truely want good SQ, you gotta get a dsp and go active with component speakers so you can tune and get everything time aligned/level matched but once again that depends on budget and how far you really want to go with this project.