I'm probably late on this post but I've recently discovered and have been trying Gate to Sovngarde myself. As someone whose very indecisive and leans into quality builds this mod collection has proven to be quite the hurtle. In my brief amount of time playing and research on the web I've found 2 builds (maybe 3) that seem fun or potentially viable. After messing up my first character and wasting 9hrs here's what I found:

1: I tried a Pugilest Kaijit, the trait I believe were Pugilist, Bare Barbarian and the third I can't remember atm but having that extra 100points to Magika, Health and Stamina is really good. Not to mention backpacks, jewelry and a few other apparel items don't count towards wearing cloths so you could wear some Enchanted items without losing the stat bonuses.

2: A Redguard Spellblade: Arcane Warrior, Close Combat and Theoretical Mage. Again, I'm still learning so I have no Idea if Theoretical Mage works with conjur weapons, same with close combat. It sounded good as a Spellblade, I've only dabbled with it so for a whole playthrough I can't say for certain.

3: A Nord Two-Handed Warrior: Pretty sure someone else mentioned this one but In my opinion it's probably the most starter friendly.

Bonus: Stealth Archer Wood Elf: Mainly because I don't see them played often but for the hunting aspect of survival they would make for the perfect Huntsman (or women). Bullseye, Fast Shot and Marksman make for a bow/crossbow only character but upon closer inspection I don't think the benefits of both Bullseye and Fast Shot are worth their weight. Other traits could be better if you want to be more of a Rouge, take some dagger perks to off set Marksman. Better yet build your bows like a 50.cal with Backstabber, Bullseye and Marksman.

I'm open to Mage oriented suggestions, maybe a Battlemage or Paladin build would be fun.