In terms of the best team/club in turkey in my opinion and what i know is Fenerbahce, Basaksehir, Galatasaray and many others who have the best potential, they have good players, like: midfielders, defenders, strikers etc.
Turkish football league is quite popular now and all three mentioned teams have some terrific players. As far as I know Radamel Falcao is playing on Galatasaray main squad including French defender Sacha Boey. Although I am not a regular fan of their club but watched some of their matches and know little bit about Galatasaray. As far as know they are the only Turkish team who have win major UEFA compettition.
Due to complex covid situation I wasn't able to watch football matches but I can say that Turkish football club have some talented players who have enough caliber to lose any team.
I actually support the Fenerbahce team. Galatasaray is the only team that has achieved the most serious success in Europe. they were really playing with team spirit that year. The Gheorghe Hagi factor was definitely important at that time. It was one of the most important values of football at that time.
A game based on football tactics and team condition. But I think the biggest factor is the spirit. The biggest problem of Turkish teams is that they play soulless.