A few mods that I think would complement this guide and fill in some gaps: Textures: Sovngarde HD: Does what it says, 4k and 2k options, only conflicts are with SSoS (2 files), Designs of the Nords (1 file), and ELFX (1 file, but has a patch on the mod page). All other Sovngarde textures are not covered by the guide. https://www.nexusmods.com/skyrimspecialedition/mods/15891 LH's Dark Brotherhood Tenets - Vitro Glass Window HD: Retextures the Dark Brotherhood Tenets, which are already covered, but by a mod from Oldrim, as well as the vitro window which is uncovered currently (picture on mod page). 4k and 2k options. https://www.nexusmods.com/skyrimspecialedition/mods/15789 LH's Dragon Glyphs HD 2K-4K: Retextures the dragon glyphs on word walls, which I like since you're usually seeing them pretty close up and are not covered yet. 4k and 2k options, as well as optional textures for the ridge walls, though those are already covered in the guide. https://www.nexusmods.com/skyrimspecialedition/mods/15666 LH's Soul Cairn HD - COMPLETE Overhaul 2K-4K: Retextures the Soul Cairn, which is not covered by the guide. Toss-up between this and Soul Cairn HD, but this seems to be closer to vanilla so I think it's a better fit. 4k and 2k options. 4 conflicting files with SMIM, though it seems to work fine anyway. https://www.nexusmods.com/skyrimspecialedition/mods/15677 Soul Gems: Acquisitive Soul Gems Multithreaded: Works similarly to the Oldrim Smart Souls mod, restricting souls to appropriately-sized soul gems (Grand Soul to Grand Gem, etc.). https://www.nexusmods.com/skyrimspecialedition/mods/1469 Magic: The Elder Scrolls V Skyrim - Tomebound: This is what I'm currently using to round out my magic-wielder in place of The Lost Grimoire of Skyrim, which has yet to be ported. Adds a lot of spells from previous games as well as new ones, and fully integrates them in leveled lists and stave crafting. Compatible with Enairim. https://www.nexusmods.com/skyrimspecialedition/mods/8079 Misc: Missives: Recently released on SSE, it works similarly to the Notice Board mod, but restricts quests based on area. So if you pick up a notice in Whiterun, the quest will take you to a location in Whiterun Hold. You won't get a notice in Falkreath that takes you to Winterhold for example, which makes way more sense to me. The only exception to this rule is the courier quests, which again makes sense. It also exempts quest-restricted NPCs and allows for quitting the job if you want. I find it to be more immersive and a lot less annoying to use. https://www.nexusmods.com/skyrimspecialedition/mods/17576 Thanks for all the work you do here!
There are different ways to do it but that way would certainly work. You can also install the mod as normal, but when the FOMOD comes up click "Manual", then go to 05 MLU and set that folder as the data directory. That's what I did.