I heard you like macros

macromacromacro.rkt

#lang racket

(require (for-syntax racket))
(require (for-syntax racket/stxparam))

(begin-for-syntax
  (define-syntax-parameter macro-stx (lambda (stx) (raise-syntax-error #f "use of macro-stx outside of macro" stx))))

(define-syntax macro
  (syntax-rules ()
    [(_ e)
     (let-syntax ([foo (lambda (stx)
                         (syntax-parameterize ([macro-stx (make-rename-transformer #'stx)])
                           e))])
       (foo))]))

(define-for-syntax x 42)

(macro (datum->syntax macro-stx x))

(let ([x 1])
  (macro (datum->syntax macro-stx #'x)))