hello,

idk ... there are lots of companies which offer them ... it depends on your use-case.

in my experience:

for simple account-security - eg. github, google, microsoft, etc. - even older ones work great.

for other purposes you have to look at the feature-list of specific tokens, if they support the necessary security-protocol for your use-case.

personally i have various older & newer models of the companies yubikey - 4 & 5 - and gotrust - idem :)

cheers t.