You should be able to tell looking At their wing's at a young age.
Wing sexing is only in the first few days. Also it is not always correct.
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Sure these are about a week or two older them mine . Male and female together they almost look identical. I’m thinking we might have to wait a few more weeks
Comb sexing can work to help determine sex when you have others to compare against, but again it is not always correct.
Some hens exhibit large combs.
The only way to determine a chick 100% male or female is DNA or a sexlink breed. Not all folk methods are incorrect, but most aren't fully reliable many males can exhibit female traits and the other way around. Some hens crow. Some hens fight with male posturing.
Saddle feathers are also a true sexing method. As males feathers will run straight down and be long and slender. However saddle feathers will not be present until your chick is older they start developing sexually dimorphic feathers.
Just wait. I know it is hard to do. If you are really needing to know, have a DNA done at your vet's office. Take folk remedies with a grain of salt. I have read some very strange things.. even holding them on their backs..one sex will stand vs not... Sorta ridiculous.
Even wing sexing which is what a lot of commercial egg production companies use isn't always 100%. not to mention that commercial egg producers destroy the cute little males