Lupus is on the list of conditions that merit a vaccine for the under 65 crowd, since it is an autoimmune disease with immune compromising medications.

It's actually a pretty long list. Being overweight (BMI over 25), having ADHD, depression, being sedentary, being a current or former smoker, having substance misuse disorders, along with all the other ones you'd expect, like asthma, cancer, heart disease, transplant recipients, and anyone who needs a careworker.

As of now, you can self certify as being in one of these groups (you don't need a doctor's note). And your doctor can still recommend it for you if you're not on the list, as long as you don't have an anti vaxxer doc.

https://www.cdc.gov/covid/risk-factors/index.html