In our archives there are several interesting version of MACD that were shared in the past. This is a nice version of the MACD OsMA which was posted by Mladen several years ago called the MACD OsMA AM (by Andrey Matvievskiy).
Working through the archives I've come across some interesting variants of the MACD made by Mladen.
Even though these have probably been covered in newer versions of the MACD, these are still great if you prefer them as standalone indicators.
The first one is the MACD using a Double Simple Moving Average (DSMA).
This is a very interesting version of the MACD by Mladen & Mrtools called the MACD with Pivots.
It allows you to also change the Pivots period. Thanks to Moey for posting this and Mrtools and Pacois for helping make this indicator NMC (New Metatrader Compatible) in this thread: Coding Help: MACD Pivots.