I gained weight and bought a back up dress for a wedding next month. My first dress worked for wearing my regular bra. This new dress is a halter. My bust is large (G) and I cannot get away with a strapless. Any recommendations for a good halter or tried and true bra clip?

Also can you style me- hair, bracelets, shoes and clutch??? No earrings- my ears aren’t pierced and wearing clip ons would be awkward.