I found the following users who may fit your language exchange criteria:

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/not_ok_inside6638	2023-06-03	Post	`8`	English, Turkish (B2)	Russian
u/merchantothatland	2023-06-14	Post	`8`	English (C1), Turkish	Russian
u/briullov	2023-06-17	Post	`8`	English, Turkish	Russian
u/tonyukuk-ashide	2023-07-10	Post	`8`	English, Turkish	Russian
u/dosija	2023-07-13	Post	`8`	English, Turkish	Russian

Please feel free to comment on the above posts to get in contact with their authors.