Adobe Express has no accent picker, so a menu that needs café or a poster that needs señor means leaving the editor to hunt for the character.
Accent Letters puts 682 accented letters from 55 languages in the side panel: á é í ó ú, ñ ü ç, ø å æ, ß, ł ż, ă ș ț. Search by the letter, by language, or by what the mark is called — "two dots" finds ä ë ï ö ü. Click one and it lands in your document as text you can style like any other.
Works offline. No account, no sign-up, nothing collected.