For me, selecting panties depends on various considerations; most importantly is what other clothes I'm wearing. A-line, full skirt, baggy sweats..almost any kind of panty is fine...tight jeans, tights, tight skirts, I need to select panties that provide serious support. I'm a "medium" front so depending on the outfit, a very supportive panty is all that is required. Occasionally, I'll need to do a partial tuck...and typically a nice form fitting panty will suffice. I use gaffs too but only when absolutely necessary. Panty selection is pretty easy if your wearing a panty girdle and probably a supportive type is best if the girdle is open bottom. Wearing a garter belt too needs some consideration; If you're ok with panty being way smaller than the garter belt, e.g., a standard lace garter belt paired with a bikini panty, then that's fine. However, if you'd prefer the panty to generally cover the garter belt, you'd choose panties that were proportional in size to the garter belt. Hint: garter belts are normally worn UNDER panties not over them. You see lots of ads with the models wearing the garter belt OVER her panties...either they don't know (which a lot of younger models don't) or they are just prominently displaying the garter belt for sale purposes. It is much more difficult to pull panties down to pee when they are under your garter belt. You can check Her Room or Bare Necessities for a HUGE selection of all types of panties.
Being from my generation, I absolutely adore full cut nylon granny panties. They were the first kinds I tried on. My mother had a very nice selection..blues, pinks, whites and yellows. I love paring them with a matching garter belt and sheer nylons...Such a sexy feeling. I had several pair of Pixie Lace Semi-Sheer Bloomers made by Sugar Lace Lingerie, you can find her on ETSY. They are sooo cute... I wear them for certain special occasions