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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/vraidison	2021-08-03	Post	`8`	French, Portuguese	Spanish
u/matheusbraga2	2021-05-24	Post	`7`	Portuguese	English, Spanish
u/nekaver	2021-05-31	Post	`7`	French (B2)	English, Spanish
u/haazr	2021-06-07	Post	`7`	Portuguese	English, Spanish
u/becalyy	2021-06-10	Post	`7`	Portuguese	English, Spanish

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