Currently play amp sims through headphones and the sounds are pretty good will I get the same quality through speakers played in a bedroom where volume is an issue.
If so what type of speakers are best to use
Thanks for any help with this

That depends on your setup, audio interface, software, and budget.

It's been my experience that most amp sims are okay to practice with, but can be quite "thin" sounding when it comes to recording. To get a sound closer to a real amp requires some creative layering, eqing, panning etc.
 
If you're just talking about practicing/playing along with pre-recorded music, then any decent studio monitors should do the job. Keep in mind that it not going to sound as good as what you perceived with your headphones, and it won't come close to what a real mic'd amp would sound like.

Fender 2x12? maybe a 4x10? Marshall Stack?

If you're using the cab/spkr in the sim, then you really should use Full Range, Flat Response amp/speakers.  My monitors work great for this.