Cholesterol, Fasting Insulin levels, and (if male) free Testosterone are other good ones. Cholesterol and Insulin should be checked by all adults annually, and BP should be checked at least annually. T isn't checked as routinely, but it's worth knowing where you fit and has an impact on your metabolics and the test isn't a big deal.
Also, resting heart rate is very easy to measure, especially if you have any kind of fitness/smart watch, and that's a good marker of health too.
I'm a fan of getting lab work done, but it's definitely more of a hassle.