You can easily manage and deploy multiple public SSH keys per user using Jinja templating within an Ansible playbook.

Variable Definition (vars.yml)

vars:
  ssh_user_key:
    - user: ritesh
      exclusive: no
      keys:
        - ritesh.centos
        - ritesh.fedora

Ansible Task

- name: Upload user authorized SSH keys
  authorized_key:
    user: "{{ item.user }}"
    exclusive: "{{ item.exclusive if item.exclusive is defined else 'no' }}"
    key: "{% for file_name in item['keys'] %}{{ lookup('file', file_name) }}{% if not loop.last %}{{ '\n' }}{% endif %}{% endfor %}"
  become: yes
  become_user: "{{ item.user }}"
  with_items:
    - "{{ ssh_user_key }}"
  tags:
    - setup-user-ssh-client-key