There's ouji which consists of pants, shorts, vests, and accessories. It's not as well known but it's good for people who don't like to wear dresses but still like the aesthetic. Thing is it might be harder to find and buy.
It's also hard to find information for but here are some ideas.
Tips:
-Bodyline has some good sets.
-Recycle lolita blouses,socks, and vests for ouji.
-Learn to sew the pants.
-Use lolita backpacks and crossbody purses for ouji.
-Find old vests and just replace the buttons.
-Look around for ideas from other oujis.
-Use crowns and hats as headwear.
-Rings, pins and brooches make good accessories.