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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/_lovetann	2023-03-22	Post	`5`	Portuguese	English
u/rs-tk	2023-03-21	Post	`5`	Portuguese (Native)	English
u/this_isclarie	2023-04-19	Post	`5`	Portuguese (Native)	English
u/notoriginaluser6784	2023-04-16	Post	`5`	Portuguese	English
u/nobodyforeverlol	2023-04-04	Post	`5`	Portuguese (Native)	English

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