Since I started learning how to sew, I have been really lucky to find marvelous fabric from some nice shops in Munich.
Quilt u. Textile Art
This well-furnished shop is located right in the center of Munich, close to the Viktualienmarkt. The shop offers a large variety of fabric as well as sewing accessories and classes. You can find some of their available fabric here.
Roly Poly is located near the Fraunhoferstrasse metro station. This shop is maybe my top favorite thanks to the diversity of the fabric patterns. The shop has also everything you need to sew clothes and accessories. It is also a perfect shop for beginners as you can buy accessory sewing kits along with sewing patterns to practice.
Ludwig Beck Haberdashery & Wool
Ludwig Beck is a huge shopping mall in Marienplatz, the heart of Munich. One of their department store offers a large selection of wool and every kind of knitting, crocheting and sewing accessories. However, you cannot find any fabric there.
As its name indicates this shop is perfect for finding wool. However, they also have a few fabric samples and some sewing accessories.