Surname change during PhD (as a male)
I know you aren't considering this possibility, but a lot can happen in a year. What happens if, for any reason, you don't wind up getting married?
There is some advantage to keeping a permanent name throughout your career, but it isn't overwhelmingly important. Eventually your future work will dominate your current work and a few exceptions probably won't be a (serious) issue. Just a bit of inconvenience at times.
I suggest, as a first option, that you just keep your birth name as your publishing identity into the future. It may be &quot;lazy&quot; but it causes the least problems overall.
If you don't like that idea, then a hyphenated name is probably best, though you might use the hyphen only for publishing identity, with some other form in every day usage (and even legal usage).
But neither of these is a firm suggestion, just a way to avoid the inconvenience attached to the alternatives.
A third option is to adopt a pseudonym, unrelated to your legal or common-usage name and stick with it. It isn't especially common to do this, but it has some history behind it.