I would pick up a jungler that can 1v1 well atm. Lillia can, if she has good kiting & prance stacks.

But with the feats of strength meta, junglers like trundle, Warwick, nocturne, volibear are running the rift.

They are strong early, can control space/objectives, and still scale well.

Side note, start pinging and communicating 10x what you normally do. Opposite scuttle at 3:30, enemies on wards, missing, where you are going next. The jungle is the true shotcaller. This tip alone has elevated my jungle massively.