I see the titles of meetings, such as last call or willingness to learn, but is each group different and are there descriptions posted somewhere?

Willingness to work and last call are open meetings. Willingness is at 5:30. Tuesday 7:30 at ECAC is a men's group and Wednesday 7:30 is a women's group. Friday 7:30 has 2 meetings one is open meeting the other is a study group of the 12 steps and 12 traditions

I had the same question when I first started going. The names don't really mean anything, there's no description anywhere. The only distinction is whether it's a men's only, women's only, or NA. Just start going to as many as you can. There's an AA app you can download where you can filter meetings based on preference.