Wigs Soft cap wigs with standing bangs/hairlines

It definitely looks a lot like a lacefront wig like the other person mentioned

 

Very much like a lacefront! I make these. They're super time consuming but can look really good. I haven't mastered making them look perfect without having to put some kind of backing after I finish lacing them.
Leme dig up some pictures I might be able to find

this was my first, you can see that I did too big of sections of hair that started to come undone. But it does show closer of how it looks
IMG_0157 by hellsing365, on Flickr

"soft cap" wise you can do the full thing in tulle, or a latex or rubbery type of glue that stays flexible rather than elmers or another type of solid glue.

spoiler below for more pics and attempts;

Spoiler

a more recent one;
IMG_1881 by hellsing365, on Flickr

I just don't often style my hair to stand up but I have one wig on hand I could do that to for a couple of pictures.
This one was styled to lay flat so it's THICK up front, but I imagine if you wanted the fibers to stand upright you wouldn't lay them facing down the face like I did, instead lay them facing backwards and let gravity help pull it forward?
IMG_20220802_115506263_PORTRAIT by hellsing365, on Flickr

The wigs you posted look like there may be some solid glue along the hairline to keep the lace laying flat and staying tight.

 

The lace front wigs are probably made similarly to human wigs. There are a variety of ways to make wigs but here are some links to how people make these types of wigs for humans. The hairs are knotted into the lace using a special tool one to two strands at a time, which is probably why these types of bjd wigs cost more than the sewn weft wigs. I have a small 1/6 scale Volks Dollfie wig which looks like it has the same basic construction of a sewn weft wig. It just doesn't have the lace front.

Here are some links on how people create wigs for people.

 

Wig 1 and 3 are lace front wigs but 2 is just normal wig. If you just want to make a wig with similar hairstyle, I recommend you to buy non-styled lace front wig and cut and style it directly. Because you’ll need to prepare a lot toys and knitting it requires a lot time. I tried to knit one by myself but sooner I found out it’s not worth the effort

 

Just want to add that the cheaper/mid range ventilated wigs are standard wigs with the ventilated front sewed to the standard (ie made with wefts) wig. So if you did decide to go the ventilated route you could do that as it is much less effort I have also seen wigs where the front was homemade glued wefts stuck to a standard wig. If I come across an example I will post it here.

Using the example of your first wig example, you could have ago in meantime with a standard weft wig which you are ok with messing around with and seeing if you could replicate... suggested solutions are watered down PVA glue (also known as school or Elmers glue, etc) or fabric stiffener glue (get the wash out stuff). If you mess up, you just wash the glue out