Nick Valentine is another excellent option. He has a deep backstory as a synth detective. His knowledge of the wasteland and its secrets makes him very useful during the story. He can offer unique insights during various quests and has a great personality that makes him a memorable companion.
Codsworth is also quite good for the story. As your pre - war robot butler, he has a connection to your past life. His loyalty to you is unwavering, and he provides a sense of familiarity and comfort in the desolate world of Fallout 4. He'll often reminisce about the old days, which gives an interesting contrast to the post - apocalyptic setting.
Piper is a great choice for the story. She's a journalist with a curious nature. She'll often comment on the events in the story, adding some interesting perspectives. And her personal quest also ties in well with the overall narrative of Fallout 4.
Piper is a great companion for the main story. She's a journalist so she has an inquisitive nature. She often comments on the events of the main story in an interesting way, which adds depth to the overall experience.
Deacon is really good too. He's a bit of a mystery man, and as you progress through the story, you start to uncover more about him. His skills are very useful in the story quests, especially when it comes to stealth and infiltration. He also has a great sense of humor that lightens the mood during the often - dark story of Fallout 4.
Lily Bowen can also be considered a top companion for the story. She's a Nightkin with a unique personality. Her relationship with the Courier can be quite endearing, and her story arcs, especially related to her past and her 'granddaughter', are very engaging and add a lot to the overall narrative.
One of the best companion stories is that of Dogmeat. He is a loyal and loving companion from the start. His story is simple yet heartwarming as he's always there by your side, ready to help in combat or just be a furry friend during your exploration in the wasteland.
In Fallout 4, one of the best companion stories is probably Piper's. She is a journalist with a strong sense of justice. Her story involves uncovering secrets in the Commonwealth and fighting for the truth. Another great one is Nick Valentine's. Being a synth detective, his past is full of mystery and his journey of self - discovery while helping the Sole Survivor is really engaging.
I think it's Hancock. He's a ghoul mayor with a wild past. He used to be a chem addict and has done some dark things. But he's now trying to make things right in Goodneighbor. His story of redemption and his unique view on life in the wasteland are really captivating.
Gale is another good one. His story is filled with magic and mystery. His relationship with the Weave and his past mistakes make him a very interesting character to have around during the story. He often provides insights into the magical elements of the game world, which can enhance the overall story experience.
One of the best FNV (Fallout: New Vegas) companion stories is Boone's. His backstory of being a sniper in the NCR and his tragic past with his wife makes for a very engaging narrative. It adds depth to his character and his actions in the game.
A good story - companion should have a deep backstory. For example, Cass has a past filled with alcoholism and betrayal. Her story is slowly revealed through her conversations, which makes her an interesting addition to the story.
For me, Lae'zel's story has a lot of emotional depth. She is a githyanki warrior, and her story is full of her struggle to uphold the values of her people while also seeing the flaws in their ways. She has to deal with her own sense of identity and where she belongs in the grand scheme of things, which can be really moving at times.