Slovak is pretty interesting in this aspect, you basically have this: á, ä, č, ď, é, í, ĺ, ľ, ň, ó, ô, ŕ, š, ť, ú, ý, ž

What about ß?

Well in french, there are no special character but variation of normal character. Except maybe for œ and æ. Also I'm curious to see an example of ÿ in use.

I am amazed that Polish almost avoided all of this (they still have a and e with the little commas) but ended up with blinding consonant clusters

Needless usevof a map