What are some options people have used from aftermarket or other cars that will go well with SW20 ?

Depends how much money you want to spend i guess.
 

After two stock one breaking on me. I ended up using aftermarket.
 
Heres the first LED one, hated it as in high wind and fast driving it flops over.

Here the current one, yes i know its Rice, its useless currently but i dont use radio so no point

What i want is to do is close it off and put a hidden windscreen antenna across the top of the windscreen instead.
Maybe when i next respray the car

There is a guide on MR2OC I think for installing a Honda S2000 stubby antenna on an SW20. 

http://www.mr2oc.com/show...=mr2+s2000+antenna+mod
 
Yes found something on it. Thanks.
 
And yes dudeman that was lol. It did cross my mind for a second.