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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/miserable-freedom316	2023-05-12	Post	`9`	German, French, Russian	---
u/nayrell_	2023-06-11	Post	`9`	German, French, Russian	---
u/plenty-guava-991	2023-06-20	Post	`9`	German, French, Russian	---
u/not_from_your_mind	2023-06-24	Post	`9`	German (A2), French (B1), Russian (A2)	---
u/einfachnebel	2023-04-28	Post	`8`	German, Russian (Native)	English

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