welcomer
/ˈwɛl.kʌm.ər/Definitions
1. noun
A person or thing that welcomes or receives visitors, guests, or newcomers
“The hotel’s receptionist was a skilled welcomer, making sure every guest felt at home.”
2. noun
A person or thing that welcomes or receives something, such as a new idea or a change
“The company’s CEO was a welcomer of innovation, encouraging employees to think outside the box.”