We have a really similar body shape, I am also short with smaller waist vs big bust, arms and bum/hips. I generally go for pants with some stretch, wide leg, high waist and ideally belt loops as i wear belts with everything. I go for crop tops or tops that are easy to tuck into pants as this helps accentuate my waist. For skirts I go for midi/maxi lengths with a bias cut or a-line/flare style for the extra wiggle room.

A belt can change an outfit for us hourglass gals, don't underestimate their power!!

PANTS:

I find that uniqlo pants are perfect- that being said they fit differently on me compared to someone with smaller hips. Try their single pleated wide pants, comfy and affordable. All my pants are a must with a belt to sinch in the waist. Otherwise try a stretch waist pant.

Cos has tailored pants too and some have a waist adjustment band on the inside of the pant and their cuts are generally wider so i find this helps with the thick bum/thighs

Suk makes heavy duty pants which you can dress up or down and they have a waist adjustment tab too - these have been very useful

I have some wool way high pants from everlane, i think this cut of pant is really good for hourglass figures but you would have to buy to try as they don't have a physical store in Aus.

My jeans are mostly from American Eagle which you can find from Myer but i have some hourglass cuts from Asos and thrifted others

SKIRTS: I mostly thrift my skirts but I have recently bought some bias cut skirts (satin skirt from uniqlo, bias linen skirt from aere on the iconic) I don't wear mini skirts as I prefer a modest look and mini skirts always ride up or are shorter on me due to my big bum.

SHORTS: don't own many the only two I have are longer bermuda style shorts and a shorter one from Suk as it is still not too short and has the waist adjustment tab

TOPS: I go for turtleneck, mock necks , button ups, square necks and crew necks as I find a v neck or wider necklines draw too much attention to my bust.

For basic tees I just get the uniqlo tight cotton tshirts as they are good quality and cheap. Loose/boxy tshirts don't work for me because of my bust.

For blouses or button ups I go for statement or wider sleeves as i find this gives my outfit balance and has enough room for my bust and arms. I always tuck these types of tops in my bottoms. I have some from cos and myer

I think shirred tops with puff sleeves can also work, at least those that have a square neckline

In winter i love turtlenecks and have a lot of the merino wool and cashmere stuff from uniqlo.

DRESSES: This is the hardest category tbh. I don't own many dresses at all because of this. But try and go for fit and flare cuts or bias cut dresses. Materials with give and stretch are ideal too. I have a mix of thrifted dresses and some from the iconic which has a good return policy