You might consider something that vibrates, if you enjoy that sensation (your male partner will probably be able to feel vibration through the vaginal wall too, so extra bonus for both of you). Flexibility will help, so it doesn't poke you or your partner in uncomfortable ways. Some ideas:
-A vibrating silicone dildo, like this
. You can choose to vibration or no vibration, depending on your mood.
-G-spot vibes, like this
, or this
-If you're not into vibration at all, a basic dildo like this one
gives you multiple options, or this
, which has a good gripping handle, might be good bets.
I know that's a lot of links, but there really are a lot of options!