It's a bit of a trick question because Filmation's influence can be felt as early as thous DC mini comics.
He-Man and the Powersword
King Of castle Grayskull
Battle in the Clouds
Vengeance of Skeletor
Filmation came along and made an animated commercial for those toys. From that point they re-imagined MOTU, and their influence could be seen almost a whole year before the cartoon would air. Tthat in-betwee era is seen in all of the stories between 1983-1984, which depending on your geographic location is when the cartoon debuted. That's why the term "Pre-Filmation" really should to be retried IMO. The more we have learned, the less sense it makes. They became co-creators and Co-owners of MOTU in regards to certain characters like Orko and POP (even more so with POP) until Filmation shut it's door in 1988 around the same time Mattel stopped making MOTU toys altogether. They even played a hand in the creation of The Man known as Grayskull and presumably coined the phrase "He-Ro" and aprently did some preliminary work on NA My point being, after that original 1982 stuff, we don't know exactly who created what when except for all the various creators interviews and art that have been found over the years. There are a few books that clarify that if you care to learn more but It's like trying to separate a peanut butter and jelly sandwich it can get messy.
Do you JUST want a list of stories in whcih He-man is a little more Conan and a little less Captain Marvel?
I can do that. I like doing that. Sometimes He-Man is a womanizing Prince Adam in a Blue vest, other times he isn't mentioned at all...Sometimes he lives in the Jungle, a hut or in Castle Grayskull. Sometimes Teela lives in Castle Grayskull. Sometimes she is a Goddess, other times she is a Sorceress. She was mystcially cloned once. Point Dread and Man-E-Faces have some confusing backstories. ZOdaC is a little more Zoak then Zodac and sometimes he is straight full goatee evil! That era is all kinds of WTF is going on. I call that The Savage Eternia. I think the massive reality alternating DC's Crisis on Infinite Earths may have caused some strange continuity to occur. One thing is for certain, that He-man will straight up kill a mother ****er! That is what THAT He-Man will do!