Then you should take to Google. Chelseas are super popular and come in a wide variety of heights and styles so I cannot be super specific but offer this advice to cover your searches:

1. Goodyear welt is what to look for. Don't see the words? Pass. Know that some brands can/do offer 2 Chelseas that are goodyear and 2 that are not, so don't close your browser after looking at one pair and getting discouraged.
2. Look to gortex, fleece, flannelor fur for warmth as its easy to skip over when you are excited.
3. Thursday, Frye and Carmina are some other brands to look at and maybe trickers.com if you wanna flex your budget.