I use a Think Tank City Walker 10.
Great bag. Light, durable, plenty of pockets.
Holds my X-T1 w/dovetail grip, 18-55, 55-200, 14, and 23mm lenses. Tabletop tripod, flash, extra batteries, cards, sketchbook, pens/pencils, tablet, phone, etc. - no problem.
It has the two things I need in any shoulder bag - the ability to stand on its own when on the ground and, the most important for me, side pockets that can hold a water bottle or be a temporary, quick access spot for lenses while shooting.