Solgarde oh my god are we even reading the same manga? The desperation of SaNa fans is incredible, and seems even more rabid than usual now that Pudding has been introduced as a contender.
I'm at the point where I don't think Nami is going to end up with any of the boys in the crew for that matter but to say she and Luffy have nothing going from them when they are literally the focal points of the series as main hero and main heroine is laughable.
Sanji protects Nami a lot and is seen in pervert/lovesick gags with her every arc for sure but we rarely see that relationship from Nami's perspective or so much as have her reacting to it. But Luffy and Nami's bond is one of the most special in the series, platonic or otherwise. She's one of the first people he recruits to the crew, he goes after her even when she betrays him, all of Arlong Park cements their bond with each other, and then in every other arc they have important interactions too…?
Luffy and Nami are literally the last ones standing in skypiea who take out Enel TOGETHER...?
Drum Island Luffy shows sensitivity to Nami's illness and is the one who ends up carrying her up the mountain and it shows her entrusting her life to him.
A huge chunk of Water 7 is them working together and Luffy protecting Nami...?
In the manga when Luffy is thinking back on the crew being split up on Sabaody the panel specifically shows him worrying about Nami...?
All of WCI is them working together to get Sanji back and she shows absolute loyalty to Luffy and gets extremely pissed when Sanji picks a fight with him...?
I'm not saying any of these moments are NECESSARILY romantic but you'd have to be in denial or not paying attention to see how central their bond is to the story and how Luffy and Nami hold a special place in their heart for each other.