Yeah... I get ya. Eventually we just hunger for more Fallout. And if I was thinking of giving FO4 another go, I'd definitely want something, anything to make it a true Fallout RPG.
The thing is, there are good mods for FO4, a lot of them. Thanks to the community, you can improve the dialog system away from that horrible four arrow mess, you can bring back skills, make bullet sponges and magical baseball bats go away, but, and I truly don't wanna flame, troll, or anything... It just ends up being like a coat of paint, barely coating the proverbial surface. Outside of quest mods, that can really be well done and let you roleplay, the game itself is pretty much unfixable from a roleplayer's standpoint. It's always the same railroaded (no pun intended) quests, the same shallow interactions, the same predictable stereotypes. It's just so... Disappointing.
But alas, I'll give recommendations anyway:
-Silent Protagonist (self-explanatory);
-Full Dialogue Interface;
-Start me Up (Alternate Start Mod);
-FROST (BIG overhaul, changes a lot of things for the better);
There are many, many more, but these should be a decent start. Add armor/weapons/ammo/crafting/ quest mods to taste.