Hello,
On newegg.com there are 53 (that isn't a typo) motherboards made by Asus which are LGA1155 (which is what the G2020 is) so your question is far to general to answer without knowing what your usage is, what other parts you do or don't have, and what plans for upgrading you have in the future..Also your chassis/case will make a difference (IE if its Micro ATX that brings down the options)