Note, remember that as a harpy you can permanently fly so long as you remain in a straight line, without going up.
Not sure how helpful that will be for you but since the monsters are always moving, it's better to try to bait their movement than to drop the eggs on them.
For example : the catgirls, when you're above them will stop moving for one turn so if you'd dropped an egg on that location, you can move above them to keep them in place for the egg.
Alternatively, something I've done is wait for a catgirl to be roughly below me, drop an egg to the left or right, move one square on the side you dropped your eggs at and then adjust your place to get the enemies on the correct spot. It's not guaranteed but it improves my odds of hitting them, I've found.
also: when you are fully corrupted: why do the monsters except the ram girls attack you even when you start a new run? its not like after they corrupt you they also know what your plans are, and in the world, it stated that all they care about is corrupting remaining narmans/humans not stopping the narmans/humans from reaching the void, at least, not yet.
Considering the the foxgirls mention it if you're a fox girl, I assume that it's just because you're not supposed to have left wherever they brought you and have "clearly" broken the mental conditionning and need a new dose. It's not like the rams outside of the house stop attacking you after all.
Game will be great, and won't entirely fall under one-sided non-con, if the dev ever decides to add in full player-side s-attacks.
There are enemy s-attacks, but what the supposed s-attacks the player can do well... do... is just charm the enemy (which is borderline if not literally useless in this game). And would allow the gaining of gems and hp without the need to physically hurt/kill the enemies, allowing for more builds.
Actually, as a ram, charm can be pretty useful since if you click on an enemy that's in the same spot as you (as a ram), you'll get them to stop being aggressive to you which counts as a kill for the game (even against the werewolf) except that the monster will also fight against other monsters to help you. Charm, if enough stacks are applied, forces the enemy to harmlessly rush to your location.
(do you mean hypnosis by charm?)