Positron Emission Tomography (PET) Guided Stereotactic Body Radiation Therapy for the Treatment of Oligoprogressive Non-small Cell Lung Cancer, Melanoma, and Renal Cell Carcinoma

Inclusion Criteria: * Documented informed consent of the participant and/or legally authorized representative * Assent, when appropriate, will be obtained per institutional guidelines * Agreement to allow the use of archival tissue from diagnostic tumor biopsies * If unavailable, exceptions may be granted with study principal investigator (PI) approval * Age: \>= 18 years * Eastern Cooperative Oncology Group (ECOG) =\< 2 * Histologically or cytologically confirmed NSCLC with 1-5 sites of disease progression while on or following systemic therapy with a checkpoint inhibitor with or without chemotherapy for at least 3 months with radiographic evidence of progression based on Response Evaluation Criteria in Solid Tumors (RECIST) or Positron Emission Tomography Response Criteria in Solid Tumors (PERCIST) * Lesion(s) must all be amenable to SBRT which will be determined by the radiation oncologists. Active lesions should be a minimum size of \>= 1 cm * Primary tumor should be controlled for \> 3 months in the metachronous setting; for synchronouos progression of the primary and oligoprogressive site(s), the primary should be treated with curative/local control intent * Patients eligible for the study must have at least one lesion for which the planned radiation dose achieves a biologic effective dose (BED) \< 100 (alpha/beta = 10) due to organs at risk and dose constraints * If the clinical scenario deem that other forms of local therapy may be more suitable for the metasta…