Place the strawberries inside the bowl of your blender.
Pour the tequila over the strawberries; at this point, you can refrigerate the strawberry mixture for 1 hour or just continue.
Blend strawberries and tequila in blender until pureed.
Stir in lemon lime soda, beer, limeade concentrate, and ice; pulse until thoroughly combined.*
Transfer mixture to a large pitcher.
Rim margarita glasses with salt, pour in the drink, and serve with lime slices.
Notes
*If your blender isn't big enough, you can just blend the strawberries and tequila in the blender, transfer to a pitcher, and stir in the rest of the ingredients.