Depends what you want to spend. Ikontas are way more expensive than nettars. I have a nettar in minty condition that I really enjoy using. It has the 4.5 novar triplet lens which is still really good stopped down a bit see below
The good thing about the nettar is it is really easy to service. Lens elements come out easily just watch the position of the front element when you unscrew the front so you can get it back in the same position for focus. The whole shutter comes off by removing the retaining ring inside and you can then dunk the whole shutter in cleaning fluid. Mine was stuck solid when I got it and now works perfectly.
And they are cheap. Easy way to carry 6x6!