Where can I read more about hardware wallet? I want to buy one for myself but I don't know which one is the best, I want the best among others, which one is your number one ranking hardware wallet?
As said, best is subjective. It depends greatly what you want.
A comparison is made in
26 Hardware Wallets, compared feature by feature but it still misses some.
You can look there and pick one by the features you find important.
For me the memory is not the important, I can uninstall apps / install as needed.
For me having a display is very important.
I rather have no battery on device than one with chances to be faulty (see
Ledger Nano X Battery Pandemic).
For you altcoins may not matter.
Secure chip may or may not be important.
Open source may or may not be important.
Price can also be a factor.
Also make sure the HW you pick works in your country (eg Arculus works now only in US).