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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/no-risk6848	2023-12-15	Post	`6`	Arabic, Spanish	---
u/warm_escape493	2023-12-30	Post	`6`	Arabic, Spanish (C1)	---
u/double-reporter-2317	2024-01-27	Post	`6`	Arabic, Spanish	---
u/sheder	2024-01-10	Post	`5`	Spanish	English
u/santicer	2023-12-17	Post	`5`	Spanish	English

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