That's a great question! You can let your clients select from event types with different assigned hosts by creating the event types in a team page. 

Standard one-on-one event types are not available in a team page, but the workaround for this is to use a Collective event type and assign just one host. 

You will then be able to share the team’s landing page link with your clients and they will be able to select from your available event types assigned to the appropriate host!