From my understanding, you're looking for a social media manager platform - like a Buffer or Hootsuite? HubSpot is more known for it's CRM functionalities - I haven't plaid with their scheduler.

You said you're pushing heavy on the videos - are you posting videos?

FB gives more "points" to video content that is created and shared on FB. Their algorithms favor native content VS shared.

I use Buffer - mostly for its simplicity and ease of use. Hootsuite isn't bad either - I've used both platforms, but what kinks are you trying to fix right now? Depending on that, one platform may be strong for what you need to fix than the other.

What have you been using up to this point? Curious to know. Also, why are you looking for a social media management platform now?

Hope this helps.