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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/analystfun6462	2021-11-24	Post	`5`	English	Spanish
u/mayokopp	2021-12-01	Post	`5`	English (C1)	Spanish
u/jesteridze	2021-11-29	Post	`5`	English	Spanish
u/99books	2022-01-15	Post	`5`	English	Spanish
u/thies555	2022-01-06	Post	`5`	English (Native)	Spanish

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