I'm really hoping we see the designs of all the other dragons that he didn't evolve into. Some of these sound so cool.
Also: These are A ranked dragons and sound devastatingly strong. What are S ranked dragons like?
I mentioned in the last chapter that I think it's the Dark Elves somehow controlling them. Because the monsters only when into a frenzy state AFTER he mentioned they were looking for them.
I went back and checked; I didn't see anything about "love" being emphasized as part of it. Rather they might want to do it with someone they like than just a rando.
If a strap-on was usable then so would be a dildo. If that was all that was needed, then there wouldn't be a huge deal about finding a partner. It probably has to be the opposite genders genitalia (and maybe juices) for it to work.
Sure, he has no public reputation, but he was scouted by THE S-ranker and the Guildmaster. That would surely make them think maybe there is something more to the MC.