I tried doing a quick search online if I’ll see any article that talked about this and made a list of casinos that allows the use of Tor but I couldn’t find any.
I’ve seen just one (I can’t even recall the name of the site, that allows the use of vpn) and since others don’t appreciate the use of vpn then they wouldn’t also allow their user to make use of a tor browser.
I don’t understand this part of your post - do you mean how I’ll hide the fact that I gamble from my job or how I’ll hide my identity if I’m to try out a new casino without them knowing who the account belongs to?