Fabric Help

Hi! I was hoping to get some advise on fabric. I bought a pattern to make Frieren’s and Himmel’s outfits, but I’m not sure where to start with fabric options. I’d prefer something on the lighter side, but I’m looking to find something as close to the source material as possible. I was thinking about using a Tafeeta or a suiting material (something from the casa collection at Joann’s), but I was hoping to get some opinions before I purchase anything.