come to a consensus on (something)

When a group of people "come to a consensus" it means that they agree on something like a decision or a conclusion:

A: Have you come to a consensus yet?

B: No, we're still trying to decide.

You can indicate what you're trying to agree on with the phrase "come to a consensus on ___":

I think we've finally come to a consensus on our team's name.

go (somewhere) for drinks

The phrase "go for drinks" means to go out to a bar or restaurant to drink alcohol.

I was wondering... would you like to go for drinks sometime?

You can also talk about where you're going to go like this:

We went to Smitty's Ale House for drinks last Friday.