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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/gkoala404	2023-10-12	Post	`8`	English (B2), Spanish	Arabic
u/medical-ad7397	2023-11-28	Post	`8`	English, Spanish	Arabic
u/tiddymilkguzzler	2023-12-01	Post	`8`	English (Native), Spanish (C2)	Arabic
u/jorjitech	2023-12-18	Post	`8`	English, Spanish (Native)	Arabic
u/alvieth	2023-12-25	Post	`8`	English (C2), Spanish (Native)	Arabic

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