Might as well pop in with a formation for Barca styled play.

433 Holding (ST and 1 CDM) works for 433(5) as well.

Balanced:
Depth 7
Width 6
Pressure on heavy touch.
W 6
Possession

Both wings freeroam.
Both CM’s freeroam.
LB/RB, overlap.

Offensive:
Fast build up
Depth 9
Add “join attack” on LB/RB.

All out:
High pressure
Still depth 9
Add Get forward to CM’s
Add CDM fall back in defensive line.

ENJOY!
(The key is to make your balanced work by making your opponent get forward)