There are unfortunately a number of satanist neo-nazi groups such as:
Temple of Zeus (aka joy of satan ministries)
Turku society for the spiritual sciences
I think the reason for this is that Nazis like to infiltrate edgy groups and turn them into Nazis I think edgy teenagers are an easy target to turn into Nazis. After all what is edgier than being a Nazi?
This was explicitly done by joy of Satan ministries on their website they had a "teens for satan" section
https://www.joyofsatan.org/Kids.html
There is also an association between black metal and Nazis which is also associated with satanism
Check on the edgy teenagers In your life to try to make sure they don't fall into this trap.
Sorry that was not my intention I don't think most satanists are Nazis and I am a fan of black metal myself.