This is probably a dumb question, but should you work to the second bend point?
I think this is a more specific version of the question: "When is working more no longer worth it?"
The answer for me was a combination of how much I liked/disliked my job (it was "meh" at the end), how much money I had (more than enough), how old I was (46), what my backup plans were if things went sideways (a lot), and what else I wanted to do (not much, but staying at work wasn't one of them).
I did choose to arrange the timing of my exit so that I could exercise a batch of stock options, so even though I was "meh" about the job and I thought I had enough money, the additional dollars per additional time calculation felt worth it.
Social Security is just another thing where the longer you work, the more resources pile up. Between the first and second bend point, they pile up at a particular rate. Depending on your own personal calculus, that rate may be worth it or it may not.
What I would do (and did the last few years I worked) was check the SS website every year and see how much my ultimate SS benefit had gone up for the work I had put in and the income I had earned. It wasn't much, and it didn't tip the scale to "keep working" for me personally.
Before the second bend point, your benefit does go up about twice as fast as after the second bend point - I think it's 32% to 15% or something like that. And it's not clear from your post if your spouse would be eligible to collect spousal SS benefits or not. If so, those two things make it accrue at a higher rate than it did for me. But at some point (especially if you know you have "enough" dollars already), they could offer you $1000 an hour and you'd turn it down because time becomes more valuable than money.