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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/zkdhfl	2024-09-24	Post	`6`	---	English, Japanese, Chinese
u/missionno4279	2024-09-25	Post	`6`	---	English, Japanese, Chinese
u/lajtomekadimon	2024-09-28	Post	`6`	---	English, Japanese, Chinese
u/cute-green-3566	2024-11-12	Post	`6`	---	English, Japanese, Chinese
u/teethemoose	2024-09-10	Post	`4`	---	Japanese, Chinese

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