This is gonna be a little difficult. I didn't want to have to retype this all over again from the beginning since this is such a long post. Sadly, here we are. For those who don't know, on Thursdays we do a bit of analysis, specifically on the reasons why some characters got naked moments according to their role in the series, then look at others roles and find good moments for them. This is what we call, How Do We Do It?
For this first series, we're taking a look at Dragon Ball in all its forms.
Now, there are two kinds of characters in Dragon Ball: combatants and noncombatants. Combatants means the fighter is involved in at least one battle in the arc, and noncombatants means they are not. This can fluctuate over time, like Yamcha being a combatant in his early appearances, but not his later ones.
All combatants have an easy way to disrobe them: battle damage. Of course, Toriyama would find it hard to have to censor all the time, and he's notoriously lazy, so he only did highly-exposing stuff with kid Goku in the Red Ribbon Arc (his entire lower half) and Recoome in the Namek Arc (his butt). Presumably, depending on how far the magazine is willing to go, this could extend to a female character (like Android 18) to expose her chest, or at least her cleavage. After all, these characters should have some muscle on them, to turn off all but the most fetishistic. Still, care must be made to avoid making it seem sexual, like not having a pervert make a comment or having the girl react until after the battle is over.
All characters enjoy the luxury of having bathing facilities available to them, which could work for males and females. Vegeta and Bulma both had sexy showers at some point, so if you need an easy moment, that'll do it.
That leaves the analysis that'll become standard as the series goes on. We'll start by looking at the disrobed characters.
Goku as a kid was portrayed as a bumpkin, someone who didn't know the rules of society. So when he got nude, it was to show he was lacking in social skills, like the time he was willing to fight nude in front of the World Tournament audience.
Gohan only really got disrobed as part of a reversion back to normal from his ape form, or a bath. He's probably bookish and shy, so he'd surely mind. Movie 3 demonstrates examples of both kinds, with a bath scene with Goku and a naked reversion from ape form, complete with a silly scene at the end with him and Hire Dragon.
Goten and Trunks have always been portrayed as stupid little kids, but Goten was definitely stupider and more like a cute little brother, while Trunks was more a scamp. They both had a shared bath scene with Goku, Goten had one with Gohan in a TV Special, and Trunks mooned both versions of Broly in movies 10 and 11.
Now on to the characters who didn't.
Chi Chi historically has been a character who's... complex. As a kid, she only knows about love from magazines, and got attracted to Goku because he touched her down there. As such, if she were to get nude, it'd be to join Goku for something like a swim, maybe something she calls romantic. She'd be great for a Gone Swimming, Clothes Stolen kinda thing, with Goku not minding and Chi Chi being conflicted between the "romantic" prospect of spending lots of time nude with her "partner" but at the same time knowing society says keep covered.
Pan started off as a toddler at the end of Z, but had so little character there wasn't much to do with her. As a 10 year old in GT, however, she was one who presented herself as a tough, capable tomboy. Still, she had moments where she wanted things to go according to a "ladylike" image. She'd probably be good for a battle damage disrobing, or maybe having a bath interrupted.
Mai is reverted back to child form in Super, and her characterization is different from the movies and TV shows. Movie Mai maintains her adult criminal personality, so a gag could be made of her trying to seduce someone but failing completely because, well, she's a child and thus not sexy. Super Mai, however, has the personality of a little kid, and'd get naked in the general comedic gags kids tend to get.
So that covers it for today. Now to decide if I want to answer the same question I did last time...