Bismillah

Al-jawab billahi at-taufeeq (the answer with Allah's guidance)

Islaamic legislation does not restrict from any positions.

Allah Ta’ala says in the noble Qur’aan, ‘And come to your tilt however you wish to’. (Surah Number: 2, Ayah Number: 223)

However, it is prohibited to have anal intercourse, intercourse during the wife's menses, or during the confinement period is also prohibited.

Please read the book below for further information.
The Etiquette of Sexual Relations : by Mufti Zubair Ismail Bayat .

And Only Allah Ta'ala Knows Best.