Keycloak is top notch in this sense. Really the best you can get. Oh and it’s open source, sonyou can self host it. We used to support ~2k daily users with an h

Keycloak is top notch in this sense. Really the best you can get. Oh and it’s open source, sonyou can self host it. We used to support ~2k daily users with an ha keycloak (running as three pods on kubernetes, with 2gb ram per pod).