What is the best way to generate a call list?

What is the best way to generate a call list?

Hello everyone.  Hoping that someone else has come up with a solution to my issue.  If I understand the flow correctly (Salesforce trained) Leads to Contacts linked to Accounts.  Deals link to Contacts.

With this in mind when I contact a lead I create a call.  Then I schedule a call.  Once I have qualified them then they become a contact.  So far so good.

My problem is that when I need to call them back, and I have scheduled a call they don't show up in today's calls.  If I goto the Activity tab some of them are there, and others are not.  They are broken down by Open/Deals and Lead/Contacts.  If I goto the lead tab the calls are there.  If I goto the contact Tab, the calls are there.  But I am looking for a way to have it give me by date my scheduled calls for the day.  I assumed that was what the dashboard was for, but it doesn't matter what I select, I don't see any data even if I set it to overdue.  And I have some that are overdue.

Can anyone point me in the correct direction?  Thanks in advance!