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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/f_a_b_i_a	2024-03-12	Post	`5`	English (C1)	Spanish
u/nearby_information53	2024-03-18	Post	`5`	English	Spanish
u/akilam93	2024-04-21	Post	`5`	English	Spanish
u/bewareofpidgeons	2024-04-17	Post	`5`	English	Spanish
u/footballresident1872	2024-03-25	Post	`5`	English	Spanish

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