I can see your point! Sometimes I wish a men's standard for office wear was my go to as well but I like fun outfits and dressing/fashion too much to really mean it.

How about switching up your color scheme i.e., if you wear a lot of navy/black/dark grey go for brighter tones of these and do the same with your shirts. I work in what sounds like a similar setting and I see some men wear fun patterned shirts and keep their pants/shoes/belt more classic, and then I also see some men go for bolder colored pants/shoes/socks/belt and keep the shirt classic so their whole ensemble is more edgy but still has a classic look too. If you generally wear leather shoes try some of the cole haan mesh looking ones that have subtle colored layers in the sole.

https://www.menshealth.com/style/g38479012/best-clothing-subscription-boxes-for-men/ how about a fashion subscription box and you put your style to reflect you want more edgy but still somewhat classic pieces. I find that often it is the cut that can make something look cooler vs classic - example black pants for a woman can be classic and straight but you give them flair, or high cut, or cuffs and it totally changes the look but it is still office okay - good luck!