/fa/ - Fashion

Alternative/not too feminine female formal attire?

I'm female but consider myself agender, my wardrobe mostly consists of clothing that can be considered valid for both sexes; on the few occasions I had to dress formally so far I just wore a shirt, dress pants and dress shoes. I feel extremely uncomfortable in dresses, skirts or anything on that level of femininity.
I'll have to attend a wedding soon, though it's not going to be a huge ceremony as the celebration is going to be mostly at home, formal attire is still required.

I've asked so I know my choice of shirt-pants-shoes are acceptable, but any particular suggestions?

/female suit inspo thread