I wear this bra as a 34DD, and it’s not perfect but the best I’ve found so far that had a balance between supportive/light/comfort

https://www.amazon.com/Bali-Womens-Comfort-Revolution-Wirefree/dp/B005W0LTNA/ref=sxts_rp_s_a_sp_1_0?content-id=amzn1.sym.8947a61d-f8de-4667-bf86-26743c3affd1%3Aamzn1.sym.8947a61d-f8de-4667-bf86-26743c3affd1&crid=TK3CYQ8G7PO1&cv_ct_cx=bra&keywords=bra&pd_rd_i=B005W0LTNA&pd_rd_r=b3529fbe-c801-4c4b-8e03-a2f2ee5bf55f&pd_rd_w=bSPYO&pd_rd_wg=pVP7B&pf_rd_p=8947a61d-f8de-4667-bf86-26743c3affd1&pf_rd_r=EANSYMM0M1FEH8K1P6YC&qid=1684870119&sbo=GLaw0Fx56FiNH%2FiZ%2B6XKiQ%3D%3D&sprefix=bra%2Caps%2C210&sr=1-1-3a65484d-1c95-4bed-b564-9469fdeef107