Changing their minds is the fun part.
I’d kill for more unique pregnancies, so Naho giving birth to something that’s not a kobold would be great. (I want a second naga with Valzira too, dammit.)
(Passiate long rant incoming)
You miss the point of their characters when you ask for this and you also miss the point of the game's lore. Both Naho and Valzira are very break not bend with their mindsets and neither of them have any good qualities that would make them queen material.
Suddenly they are better for being queens because they resist you? Naho ran her tribe through her vagina and used those loyal to her to jump people who opposed her like Eburon. The fucked up part about that is that Valizra gave her a herb that made her temporarily infertile and the ones from her pack who protected her believed she was bearing their child. She's a fighter, no doubt but she wasn't that good of one considering she had Eburon jumped instead of 1v1inghim. In Act 2 ravager was a teenager who still had a lot to learn. And once he is decently strong enough, he dominates her. The only real threats to you was Valzira,Mae, the army, and Heloise. Naho was pretty much hated by her clan because she tried to change who they were due to Valzira's sexist views. She hates you personally because defeated her in fair combat. She hates her pack because they didn't jump you after you beat her. Bro, she's legit trash who doesn't even have honor and hates you because you are a dragon. They were is no path that makes sense where she falls in love with you. She reigns a clan built on sex and deception. Even though she hated other female clan mates who used their pussies instead of getting shit done, she submitted herself to it. If she was as great as a warrior as she believed and her fans claim, she wouldn't have had to do any of that.
With Val, I just don't really understand why people like her. Okay that was a lie, I kinda do, because she's so resisted and against you, you think it is the ultimate victory to change her and make her love you. The reason why you had to use drugs on Naho. You had to literally make her dependent on you to become your consort. Why? Because there is no reasonable way she would ever and I mean ever choose to be by your side of her own free will. The saying goes doubly so for Val who hates dragons and men with a passion. Let's not forget what she did to our poor femboy goblin, something she did without a ounce of regret or shame. She's worse than a wolf girl if I could compare their feelings towards the dragon, the wolf girl would hate the ravager while Val would loath them. Not even someone is sweet as the farm girl could actually make the elf see passed her own hypocrisy. Val is a schemer, a manipulator who does their work in is the shadows, and rarely leaves them. She doesn't know how to run a kingdom, she could make a decent adviser or spymaster but not a queen and that's if you're crazy enough to trust her with such a decision.
Being Queen is a very important role, it requires clear loyalty to the dragon and knowledge of politics, the kingdom, and proper etiquette. It's not a figurehead that's just there to look pretty and have kids, because the dragon once they mature, have very long naps. Something they don't have any control over it. The best queen candidate for not is Adeline, like her or not she's the best option for now. All other consorts and harem-mate realistically just don't have the experience or knowledge. It's a big ass role and you basically asking someone you love to be president because you love them.
I can see naho having a different type of child, but most children are kobolds because the person has to be of a certain royal blood to birth a dragon.
I thought the game made it pretty clear that the wolf girl and swamped elf would never serve you willingly it's against their characters to Serve you cuz they have good reason to dislike you. You aren't going to win them over with some good deed the hate they bear for you is not like that of a rival or girl you don't get along with. They legit want you to die it would take great joy and be the ones to deliver that death to you. Yes, you can change them but that change involves breaking them. There's no other way about it because they don't respect you and won't stop hating you regardless of what you or others say to them.
The huntress is able to change her ways because she hated her path, her hatred for you was half-hearted at best. She no longer had the feverish spark she used to. This makes perfect sense since she was literally fighting limb for limb and taking dragon dicks for the convocation and all they did was send her back for more. Until she reached the breaking point and then still continued. She isn't like Val or Hel who didn't get the bulk of what fighting dragons meant. Hell Val used to assist/manipulate a dragon. Your dragon is different from the others, you're still a killing machine who kidnaps and forces himself on those he captures, but you at least care about how they feel and stuff. Enough to listen to their plights and demands as long as it doesn't involve releasing them.
Which sounds bad, but after all the shit the huntress is put through, it's practically a breath of fresh air to be around something that actually GIVES A DAMN about her. Like holy shit, the pale convocation is fucked up. Sorry if my words are harsh