From the information I have, almost all are friendly (6)
I believe the answer is:
genial
'friendly' is the definition.
(similar in meaning)
'from the information i have almost all' is the wordplay.
I cannot really see how this works, but
'information' could be 'gen' (gen can informally mean information) and 'gen' is found within the answer.
'i' could be 'a' and 'a' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'are' acts as a link.
Can you help me to learn more?
(Other definitions for genial that I've seen before include "Angel I found being affable" , "Cheerful and well-disposed" , "Pleasant and cheerful like good host" , "Friendly and agreeable" , "Mild and pleasant" .)