Hi there, I was wondering what safe sleeping advice is available for twins, from birth to 6 months? what would current recommendations be?

The recommendations for twin sleeping environment is the same as single babies.

However, if you want to co-bed twins then there are some safety guidelines which include:
Sleeping twins in the same safe cot (known as “co-bedding”) is dangerous if one part of the body of one twin were able to accidentally cover the face of the other, causing an interference with breathing. There is a risk that this can happen if the twins are sleeping side-by-side.
https://rednose.org.au/article/sleeping-twins-in-the-same-safe-cot