There's actually a whole section of couple's toys
here on Eden. It really depends on your taste, style, etc. Some couples like things that vibrate, some are into pegging, sometimes furniture is something a couple might lust after.
So, really, I guess I should start by asking what are yours and your partners interests when it comes to toys? Or are you even sure yet? Sometimes just experimenting can be fun, if you have NO toy experience AT ALL.
And sometimes, you just see something and KNOW it was meant for you!