It's hard to give you advice without pictures. Not all Norwood 7's are created equal, there are Norwood 7s with good donors suitable for surgery.
Below is an example:
However, there are other Norwood 7s who don't have a donor supply or hair quality suitable for surgery.
Example below:
In the latter example, you see the sides are very low, even beyond a Norwood 7 pattern, the donor hair is very sparse, and there simply isn't enough hair to transplant even a reasonable hairline. If you're in this situation surgery is not an option.
I haven't seen any Norwood 7 hyper responders to medication. In fact, it's my speculation that meds rarely help Norwood 7s unless they're in the beginning stages of hair loss, even then it probably won't be enough to keep them from going bald.
As a Norwood 7, you're in for a LONG road. You're talking serious money, if you want to have a hair transplant. A Norwood 7 requires at least 8K grafts, and that's leaving the crown bald. You're going to spend at least 20K conservatively. Is it worth it to you? Really ask yourself that question. You will never have a full head of hair, even if you have a 10/10 result. You're always going to be somewhat balding, if you're a candidate, which is a 50/50 as a Norwood 7.