haha...leave it to rafters to put a bunch of beer in their cocktails. I'm surprised there isn't bacon in them too.
I'll kindly ask you to keep the beer out of my Cocktails please.
For margaritas, Keep it simple, a nice blanco Tequila and some sweet and sour and a lime wedge is all you need. I've actually been just taking this pre-mix Margharita... https://coyotegold.com/
It looks and sounds like a horrible frat boy party drink, but it actually uses high quality tequila and tastes great. Its ready to go and you just pour it over ice and maybe add a lime wedge.
I've always wanted to do a large batch Old Fashion or Boulevardier (like a Negroni but with bourbon... one part Compari, One part Sweet Vermouth and 2 parts of your favorite Bourbon or Rye with a twist of lemon or orange rind). Its a little sweet but bitter at the same time.
I like a good Mule too. Very refreshing and you can mix things up by using different ingredients. I'm a big fan of the Irish or Kentucky mule using Whiskey instead of Vodka. You could do this large batch as well.