Unfortunately in Portuguese there is still no widely adopted gender neutral pronoun. Heck, as far as I know, we still can't agree on what the best solution is due to the way gendered pronouns are tied to all the grammar.

But some solutions I've seen include:

• Using @ or other symbols in place of a/e. Ele/Ela > El@
• Using U in place of e/a. Ele/Ela > Elu
• Modify the male pronoun (which is the default for mixed gender groups of nouns) to have an accent, kind of in line with the Spanish Elle. Ele > Éle

By contrast, Japanese, which I also speak, has no need to use gendered pronouns (usually you just use the person's name) so it's really easy to live by. Even if you need to use a pronoun, there are many ways to make a gender neutral one, eg あの人 (lit. That person).