A lot of ET-contact stories talk about interaction with Blonds. (Sometimes people refer to them as "Nordics," or "Scandinavians," or "Swedes," too.)
Usually, they are said to be quite benevolent.

In reality, there is no "one" Blond race, but there are several. These are the names of Star Systems from which the "Blonds" are said to be coming from: Pleiades, Hyades, Procyon, Tau Ceti, and Lyra - all of which, allegedly, are inhabited by Lyran Caucasian races. The DAL also are said to be Blonds, as are the Ummites.
According to Branton, all the Lyran Caucasian blonds are member of the Federation of Planets.

It should be pointed out, however, that the Greys sometimes use people that look like blonds in their abductions, to interact with the human abductees. These Blonds are NOT the Blonds mentioned above, but a hybrid gray/human race that was artificially created by the Greys through genetic crossbreeding.
Some abductees mention that all these blonds look almost identical, and therefore speak of the blond "clones."

In the Dulce Material, Branton mentions a mixed group of inhabitants on the fourth planet of the Altair system, called Altaira. This planet would be inhabited by a "Nordic" race that co-operates with a race of Greys. He claims these are not part of the Draconian Empire, but they are heavily involved in abductions and in interbreeding programs (between these Nordics and humans).

Several sources claim that Rigel originally was inhabited by a race of Blonds. When their system was being taken over by Greys, they would have fled to Procyon.