hereHere is a good article on the topic,. I will be attempting to summarize this article in my answer, as well as including any other relevant information.
This site claims Germany is against TurkeysTurkey's ascension to the EU because turkeyTurkey has arrested German citizens. Also, Turkey has called out major parties in Germany, potentially drawing their ire and causing them to oppose Turkey joining the EU. However, this (outdated) site claims the opposite, saying Germany wants Turkey to join the European Union.
In 2016, Austria called for the European Union to stop talks with Turkey, and still holds this stance today.
BelgiumsBelgium's former prime minister opposed Turkey joining the EU,. I couldn’t find anything more up to date.
The President of France has opposed Turkey joining the European union.
Denmark’s previous president opposed Turkey joining the European Union,. I could not find anything more up to date.
note that this isn’t a full list of reasons Spain supports Turkey, and a better explanation can be found onin the linked article.
This (outdated) site Claimsclaims that Italy wants Turkey to enter the European Union, as does this site. The second site cites trade as the reason Italy wants Turkey to enter the EU.
As far as I can tell, this means the Malta supports Turkey entering the EU.
[this article] claims that Finland supports Turkey joining the EU, with more detail in the article.
This site says that Latvia supports Turkey joining the European Union.
I couldn’t find anything definite, but based on this site I surmised that the current president of Lithuania has major problems with Turkey, so I would guess that he wouldn’t support Turkey joining the EU. However, this is just a guess, and if anybody has any better sources I will edit those into my answer.
The president of Poland says that he hopes Turkey will eventually join the European unionUnion, which most likely means that Poland supports Turkey joining the EU.
This article Claimsclaims Romania backs Turkey in joining the EU, saying
I couldn’t find anything recent for Bulgaria.
This site claims Croatia supports turkeyTurkey joining the EU, saying
Slovenia's Foreign Minister Anze Logar on May 4 pledged to play a constructive role for Turkey's membership in the European European Union.