Like Disney Hunchback of Notre Dame? Then: Phoebus/Esme, Quasi/Esme, FrEsme please?
Oho, ohohoho? 😃 HERE I GO!!!
Phoebus/Esmeralda
Since it's Disney version we're talking about, HECK YES!! I loved them as a kid and I still love them as an adult. The two work very well together and have an excellent chemistry. I never agreed with the "Phoebus gets the girl only because he's handsome" and I get annoyed each time I hear/read a similar comment (especially when it's from a guy, incel much?).
The second movie did them dirty and a disservice so I'll ignore it because if these two had to face struggles as a married couple, there were more interesting things to work with like Phoebus struggling with PTSD or any sign/reminder that he's a war veteran and needs time to adjust, how would they live, what about their families, etc. That would have made them less bland and not made a fool out of Phoebus or Esmeralda accusing him unfairly of being judgemental when him not being was the whole reason she felt attracted to him to start with!
Quasimodo/Esmeralda
So far, I've only read two fanfics that had a characterization that made them work for me. Otherwise, I see them as platonic soulmates💞 I get why Quasimodo falls for Esmeralda (who doesn't? 😳) but let's not forget she's the first person/woman to show him compassion and to treat him with kindness and respect, and he idealises her, so it's more infatuation than true romantic love. Because yes, I do think and agree that they love each other deeply, just not romantically and that makes it even more touching in my eyes. I believe Quasimodo might find someone that will want to share their life with him as a spouse when he's ready too.
Frollo/Esmeralda
Now, I'm in a "divise subject" territory 😆
I understand why the pairing is popular, but too many fanfictions/art show Esmeralda as resigned and becoming submissive to Frollo's authority and sometimes cruelty for my taste. Sometimes, I feel like Esmeralda serves as a self-insert for some authors (which I don't mean as an insult btw) who are fond of the dominant man/submissive woman dynamic. To each their own, I guess, definitely not mine.
I'd like it a lot more if Esmeralda was the dominant one - and not just because I like femdom or out of spite or anything! Esmeralda is feisty, courageous and wouldn't just bow her head silently in my opinion; plus I am a big fan of the heroine/hero catching the villain off-guard and getting the upper hand (y'know, like they do in most stories but not to win/kill the villain here, see where I am going?) Show me Esmeralda getting things (cough) into her hands and making Frollo kneel!! It's a pairing I have difficulty seeing them have a happy ending without changing the characters quite drastically (not impossible though), so unless it's like canon: the one-sided and tragic end, I see it more as "it's complicated", star-crossed lovers at best or bittersweet, borderline or obviously toxic for the two of them.