Tomboys/Serious Girls

I might have missed some, let me know.

Diane Martin / Miss America I
An FBI agent who joined the Fever team to avenge her father Bosner, who was slain by Egos. She is armed with throwing knives. She does a disco dance. After she was wounded by the Dracula Monster, she returned to the United States.

María Nagisa / Miss America II
An FBI agent trained by Diane Martin's father. Maria takes her place as Miss America.

Mika/Yellow Four
Mika was originally a photographer who was hesitant at first to join Bioman. She was the more hard driven female of the two. In fact, she was the first female yellow ranger.

Jun/Yellow Four
Tomboy, did fall for a man. The decision to join Bioman led to conflict with her olympic dreams at first.

Tsubasa/Change Phoenix
A Motorcyclist and tomboy originally an EDS reconnaissance officer.

Haruka/Mask Yellow
forced to abandon girly, smart and tough

Remi/Five Yellow
gymnast and dancer and Kung-fu, bad at housework

Ako/Blue Swallow of Jetman
She was a tomboy high school student who wanted to be paid first.

Tsuruhime/Ninja White
First female leader. She knew how to hold four boys in a row. She wasn't super feminine, strong and expert in some areas.

Juri/Oh Yellow
She was tough and serious. Juri was not afraid of spying and pretending she allied to the enemy. Juri was much more stern and responsible than Momo.

Natsumi/Yellow Racer
She was a mechanic. In a flashback, we are shown she was always technical minded and didn't get along with boys as she was strong and fought back.

Saya/GingaPink
I hear she was tomboyish.

Yuuri of Timeranger
I don't think she is very popular now, but I know back in 2000 when Timeranger aired, many fans were crazy about Yuuri, the hurt but tough as nails leader of Timeranger.

Ranru Itsuki / Abare Yellow
A technology brain and formally trained idol. Yatsudenwani had a crush on her.

Jasmine of Dekaranger
I think Jasmine is more popular in US than Japan, I mean Umeko is more popular in Japan, but Jasmine was pretty alluring and tough that attracts fans. She is strong and is an ESPer.

Sakura (Bouken Pink)
She was real serious, almost didn't laugh or smiled. She was rich but trained by military or something and was very stern but in love with Akashi.

Ran Uzaki/Geki Yellow
She was definitely a tomboy. While many don't agree that she was the leader. But Master ShaFu did call her 'captain' of the Gekiranger. So some people think that means she was captain in charge of getting new members. But she did lead the team. The others always ask her for her approval or input.

Miu (Go-On Silver)
She was sort of a tomboy, as she was like her brother.

Moune (Gosei Yellow)
She was sort of a tomboy, bubbly and sweet too.

Luka Milfy of Gokaiger
So far, Luka seems to be the front runner for the most popular heronie. Ahim is cute and sweet, but I think Luka gots us with her exotic looks and love for money. She is also tough as nails and we love how she always bugs Don.

Related: http://henshingrid.blogspot.com/2010/10/feminine-and-masculine-two-sides-to_07.html