Yikes, please please please PLEASE don't use tape when binding!!! It's not very effective and can cause long-term health problems!!! If you're going to bind and have a large chest, first acknowledge you're not going to get 100% flat (and that's not a bad thing, there's tons of dudes with a lil bara chest!), and that investing in a binder is a better option in the long run. I'm a 36DD and I fully, 100% recommend gc2b as suggested above ^ It got my chest the flattest I've ever seen, came in nude tones, and was so comfortable I even forgot it was on!
Toracon 2017 | Colossalcon 2017 | Otakon 2017