New nerd joining the ranks

Another new player thread, apologies.

I’m looking for a deck for a fairly new mtg player (but experienced in other games).

Does not have to be “new player friendly”, but preferably plays nice with unupgraded and lightly upgraded precons.

Flavor is important (I can’t stand investigators, race cars and and cowboys)

I’ve done an unhealthy amount of research and I’m more lost now than before.

I can get any of the 40k, lotr, tricky terrain or house of endless suffering for $50-100.

Would those fit the bill and are they worth it? I really appreciate any feedback.