Start with a separate room: Allow your new pet to acclimate in a separate room away from other pets.
Use scent swapping: Swap the pets' bedding, toys, or blankets to introduce them to each other's scent.
Slowly introduce them: Gradually introduce the pets by allowing them to sniff each other through a baby gate or a pet carrier.
Supervision is key: Always supervise their interactions, especially in the beginning. Ensure that they dont get scared and attack anyone.
Don't force interaction: Let the pets take their time to get comfortable with each other. Give the pet its own time to interact.
Treats help: Use treats to reward positive interactions and behavior. Give your pet a wonderful treat for every milestone reached.
Provide enough resources: Ensure that each pet has their own food bowls, water bowls, and beds.Ensure that everything is clean.
Take them on walks together: Take your dogs on a walk together to encourage bonding and companionship.
Socialization: Socialize your new pet with other pets and people to help them adjust better.
consult a professional: Consult a professional trainer or behaviorist if necessary. They have the experience to train pets.