For me, the sides of my hair is where i have most trouble. What i figured it there are two stages where it looks “good.”
The short fade or the longer stage were it can be slicked back slightly was pomade. It looks like you’re in the middle stage so it’s gets puffy. This is just a personal preference but i like my sides short with a fade. Not a skin fade. And then i keep my top hair longer so I could style it similar to the jujutsu Kaisen references.
Another other thing i do is literally google Asian men hairstyles and find something i like. I know it could be anxiety inducing if you go in and try a style that doesn’t you don’t like or didn’t turn out the way you wanted. But one thing I’ve come to really learn and accept is that hair literally grows back! So I accept it for what it is and then try again in a few months.
Keeping all that in mind, i think you’ve got a great head of hair to work with. I used to wear my hair down like you have there but in my late twenties, i started wearing it “up” and styled like that jujutsu Kaisen reference and i never went back. I think that look could be cool for you too.
But in short, google some references that is Asian men specific. Bring it to a stylist. Don’t be afraid to tell them your nervous or what not. They should know hair is important and if they are a professional, they’ll help you through it.
As far as products, i love this hair wax/pomade thing. I use a pea size (maybe 2) after i blow dry my hair. My stylist used this on my hair once like 7 years ago and I’ve been using it ever since. It’s a nice hold without making my hair greasy looking or crusty.
Nature Funky Beats Hair Styling Matt Wax https://www.amazon.com/dp/B00ZJBSJ1M/ref=cm_sw_r_cp_api_glt_i_917NTBH796T2SBFSJBF6?_encoding=UTF8&psc=1