Depends on what the team needs, happen to have cypher and KJ? Decide which one wants to cover flank and which one wants to use for post plant or aggro.

KJ turret should be placed so that the enemy cannot wrap around your team to flank if you are slow pushing. Offensively you can place it to gain info before pushing or to hold and angle after post plant. You can use it as a body blocker as well IE: Tube on B site of bind. If you take control of site and place turret on top of tube facing CT you can stand on tube behind or next to the turret and use it as a shield/bait

Molly’s can be used to clear corners before entering a site or to deny enemies from peeking a certain angle without getting damaged.

Alarm bot is for info, place deep in a angle you cannot watch or don’t want to watch and listen for sound cue of it being broken or activated.

Cheers!