Personally, I don't have a favorite manufacturer, but at the moment I'm quite happy with my GALAX RTX 40 cards. Got a half dozen of them from 4070 to 4090, and they are quiet, fast, and you can permanently disable the RGB crap without needing to run any software in the background.
On the AMD side of things, I still have an ASRock 6800XT card in use. I really like that their bling-bling cards come with a dip-switch to disable RGB.
Just an FYI, Zotac is probably the largest video card manufacturer in the world... well the company that owns them. PC Partner
Are you sure?
ASUS had about 12x the revenue of PC Partner in 2023 according to their annual reports.
PNY manufactures a huge chunk of the workstation cards for nVidia, a segment that has about 3x the revenue for nV compared to the whole revenue of PC Partner.
Not to forget Palit that also owns Gainward and GALAX (except China). Sadly, they aren't publicly traded, therefore their revenue is hard to come by, but I remember news reports from a couple of years ago that they surpassed ASUS' GPU segment. Might have changed back over time, though.