If you haven't already seen it, this looks like it might be good for a start:
https://csn.cancer.org/categories/kidneyIt's cited under the auspices of the the American Cancer Society, Cancer Survivors Network, which would seem to give it some credibility.
This also looks good, again assuming you haven't already seen it, listing support groups by state:
https://aakp.org/center-for-patient-engagement-and-advocacy/support-groups/(and note the sublink "Click here for virtual support groups.").
And looking over the general website of that group (AAKP - American Association of Kidney Patients) might also provide some good information.
Hoping this helps.