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

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/psycheplus	2023-03-08	Post	5	English (C1)	Portuguese
u/affectionate_ask1049	2023-05-22	Post	5	English (C1)	Portuguese
u/then-math3503	2023-04-26	Post	5	English	Portuguese
u/rjcoxy	2023-05-17	Post	5	English	Portuguese
u/liamjh27	2023-03-11	Post	5	English (Native)	Portuguese

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

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