I have had a similar problem throughout my life because of the size of my Cock. Clearly, we live in a different time when women (and men) can bring a charge of sexual harassment any time they feel assaulted.
This assault can range from "improper" touching to off-color comments and, of course, dressing in sexually suggestive way; in other words, the bar is set very low especially between men and womenwomen in the workplace.
I always had to wear a jock to contain my meat; it was harder when I was younger because my Cock had a mind of its own. I even purchased some retaining underwear that is sold for dancers to reduce the bulge that will show when hung men wear tights.
No matter what you do, it is impossible and actually painful for a hung guy to conceal his natural attributes. Ultimately, you can only reduce the visual impact of your genitals by wearing loose clothing and long shirts or jackets. Having to wear a regular suit for work will only exacerbate the situation even when wearing support underwear!
I can only suggest that you find work in a place where women are less prominent; their culture is not currently positive to men. They often talk about toxic masculinity and will see any overt male feature as a challenge which they can not overcome and do not want to deal with.
Women should be turned-on by men and masculinity but the reality has been perverted by radical feminists and the belief that all men are predictors; they actually see sex with men as rape under any condition and want to live in a completely feminized world.
I don't hate women but I prefer working with men. Maybe I'm a product of my homosexuality but men are just easier to be around and aren't likely to condemn a guy for being hung and having it show. Even around straight guys, there is a secret admiration for well endowed men.
My experience is different than yours and every work environment is now seen as a "culture" that has a delicate balance. In these dynamic environments, women are attempting to compete with men on an equal basis; the fact is, women are designed to be different from men and can never overcome the sexual reality that defines their place in the natural order.
So if you are well endowed, be proud and don't try to conceal yourself from being seen and acknowledged for the unique expression that should, in a sane world, be celebrated!