track your parcel to ensure you or someone else is at home for the delivery

install a video doorbell; this can be connected to your mobile so you are notified immediately of any delivery, and is easier to install than a full CCTV system

install a security light

arrange for your parcel to be delivered to a trusted neighbour, or other family members who will be at home; if you live in a flat, is there a concierge who could accept the parcel for you?

use an off-site locker service for frequent deliveries, or for expensive items; these parcel boxes are more likely to be in busy, safer locations - such as supermarkets - rather than secluded areas which could be targeted by thieves