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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/alongcameparker	2020-07-24	Post	`5`	English	Spanish
u/hutruk	2020-08-07	Post	`5`	English (C1)	Spanish
u/concernicusdanceoff	2020-06-30	Post	`5`	English	Spanish
u/niknnica	2020-08-15	Post	`5`	English	Spanish
u/rudametkin	2020-08-11	Post	`5`	English	Spanish

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