As a fellow little fella™ (5'6") here, why the hell wouldn't you ost your height in your dating profiles? I feel like that's catfishing as much as fat folks who post only face pics or old/doctored photos. If you're up front and comfortable with your height, no one else will be.
I guess looks, physique, and charm factor into that as well. I should count myself lucky that the other good factors about me compensate for the fact that I'm just a wee lil' guy, a buck-fifty soaking wet on a day I've eaten a lot. That said, I've still never had trouble with larger women. I've dated/slept with plenty of women who were many hundreds or percent heavier than me, and some were even taller. My experience is, if you're not weird about it and show no hangups about your height, no others will; but, I was always very straightforward about my diminutive stature, so maybe I weeded out the people who would/could have been weird about it.
Just own it. There's nothing wrong with being a short king. Most women I've been with, whether 200 or 500lbs believes that "you're all the same height when you're horizontal" (I don't agree based on belly and booty height of my sexual partners, but I get where they're coming from).
I will say, I understand the pressured women feel (especially HUGE women) to be 'small', or at the very least smaller than their significant others. It's a BS patriarchal beauty standard/societal expectation, but it's not on you to make people process that shit. If they're not comfortable with that, I don't think they should be dating anyone until they processes those feelings.
I had one very toxic ex when I was first dating (who wasn't even that fat, mayyybe 220 lbs at her highest) that said she always felt like a 'sausage kaiju' when she was next to me, despite being just about the same height. But I was lean/thin, and also more attractive than her usual/previous partners were, so SHE was the one who was so self conscious that she self-destructed and took the relationship with it.
And thank god she did lmao. You're not missing out if someone won't date you based on your size; that's their hangup, and they just did the work for you so it won't hurt later when things end because they can't handle being perceived as large.
These days, my ~400lb wife is so close to me in height, that we trade off who's taller based on who slept better the night before. lol We love our size contrast, and being able to see eye to eye makes kissing and most other forms of affection fun & easy.