Hey @kspika there is already a Trello and HubSpot CRM integration supported by Zapier - check it out here.
Zapier uses triggers and actions to automate work between HubSpot and other apps. A trigger is an event that happens in one app and an action is the event that Zapier automatically performs in another app. You can find out more about using HubSpot with Zapier here. If this integration still does not meet you use case / goal then do let me know.
Furthemore, HubSPot now offer’s a native project management tool called HubSpot Projects, which is available to Marketing Basic, Pro and Enterprise customers. Find out more here.