The TSS visa would be the only one that come to mind, but you would need an employer willing to sponsor. Your boyfriend can be included in your application. However, you need to be aware that partners of temporary visa holders can have issues finding employment and that the visa is tied to the job - so lose your job, you lose your visa. I am though assuming you and your boyfriend live together as man and wife? If not, then yes, his only option would be a working holiday visa