Looking for a fast sweeper for in-game

[BlazingCobaltX]

My current team (Brionne, Lycanroc-Dusk, Fomantis) is kinda slow. Though Lycanroc can outspeed some stuff, it's not enough, so I am looking for any fast sweepers that I can use in-game. I don't have a preference for physical/special, as long as it complements my team. Any suggestions?

 

[HeroLinik]

Ideally, you want something to deal with Steel-types or Poison-types, as they will threaten your team in the future. I was tempted to pick Gible if you can obtain it, or if not, Flygon. The latter gets mention as it can set up with Dragon Dance and begin a sweep.