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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/mundane-leg-1615	2024-04-02	Post	`7`	German (Native)	English, French
u/fartofgenius	2024-04-11	Post	`6`	---	English, French, Russian
u/tereza5324	2024-04-16	Post	`6`	---	English, French, Russian
u/sln_0906	2024-05-08	Post	`5`	German	English
u/ichbinsara	2024-06-14	Post	`5`	German	French

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