Good/fair rates as of today:
5 years 0.89%
6 years 0.98%
7 years 1.05%
8 years 1.12%
9 years 1.18%
10 years 1.24%
If you get lower rates than that, it‘s excellent. But I would personally wait for 10 years below 1.00% before fixing. I think it‘s only a matter of weeks/months.