2 companions and familiars, from Talking Head to Terror Bird.
Familiar
Required Number of Abilities 3
Granted Abilities cantrip connection, skilled (your choice of Arcana, Occultism, or one kind of Lore), speech
Heads Will Roll Unless its master gives the talking head the flier ability, a talking head is able to move only by rolling along the ground, reducing its speed to 15 feet. Alternatively, a creature can, as a single action, kick or throw the head 30 feet. This can't be used as an attack; the head bounces harmlessly off anything it hits.
Undead Your familiar is undead. It has negative healing and is immune to death effects, disease, poison, and unconscious. It's destroyed at 0 HP.
Book of the Dead, page 40.
Companion
Size Large
Melee beak, Damage 1d8 piercing
Melee talon (agile), Damage 1d6 piercing
Str +3 Dex +2 Con +2 Int -4 Wis +1 Cha +0
Hit Points 8
Skill Survival
Senses low-light vision
Speed 40 feet
Special mount
Support Benefit Your terror bird screeches at your enemies when you create an opening. Until the start of your next turn, your Strikes that deal damage to a creature within your terror bird's reach make the target flat-footed until the start of your next turn.
Advanced Maneuver Tearing Clutch
Tearing Clutch
The terror bird makes a beak Strike; on a successful hit, the target takes 2d6 persistent bleed damage.
LOTGB, page 55.