Can I obtain a new 6-month tourist visa in Laos if I have a multi-entry tourist visa expiring soon?

The nearest thai consulates that will issue a 6 month METV to someone without them being a legal resident of the country are the ones in Australia, no consulate in S/E Asia will issue a 6 month METV to someone who doesn't legally live in that country.

I'd say GET your last 60 day entry on the METV you have (by border bouncing just prior to the "enter before date" on the visa itself) and then get a 30 day extension on that last stamp. That's the way to wring the most out of an METV

snap patrick lol

Can you not just get a 60 day tourist then extend it to 90? that will give you the time needed

Is the visa valid until 4th November or your current stamp?

If it's the visa you can re-enter Thailand before the 4th November and you will get another stamp for 60 days. That stay can be extended by another 30 days at immigration for 1900 Baht. So you could be good until end of January / beginning of February.

Jason already mentioned, where you can get a new METV.

Laos won’t give you another MEtV unless you are a permanent resident there. You’ll need to get it from your home country or from Australia (where the don’t enforce the residency requirement).