Geocities had a ton of xfiles fansites https://geocities.restorativland.org/

(beware, has auto-playing audio!) https://geocities.restorativland.org/Area51/5795/

https://geocities.restorativland.org/Area51/8406/main.htm

https://geocities.restorativland.org/Area51/6601/

https://geocities.restorativland.org/Area51/8616/

https://geocities.restorativland.org/Area51/2133/

https://geocities.restorativland.org/Area51/2442/

and many more.