Can I extend my Tourist visa in Thailand and apply for the covid extension afterwards?

Yes can with your embassy letter

No

Has anyone that was on a 60 day covid extension been able to apply for and get another 60 day extension?

Go before January 29th and get 60 days by then it will probably be extended again

just so you're clear. The order that allows people to apply for 60 day "covid" extensions expires on Jan 29th <- that means right now that's the last day you can apply for that extension.

Also SOME immigration offices are telling people who recently entered on 60 day tourist visa stamps that they HAVE to get the 'regular' 30 day extension first and then if covid extensions are still available when that runs out they can apply for one.

BUT

Other immigration offices are just giving the 60 day covid extension automatically without people on 60 day tourist visa stamps even asking.

Check with your immigration office to see how they handle new arrival extensions.

I believe you can get another 60 days at moment that’s what my lawyer has told me I can do. I also arrived on 60 day visa.

Covid extension currently available til the 29th