This whole topic is a little vague. When it says "on the market beside the 5 Teslas"... It would make sense if it said "on the road besides the 5", or alternatively "on the market besides Tesla". Are we talking about new cars you can order, or existing EVs on the road?
At the moment, Tesla is perhaps the only EV manufacturer that is actively taking orders AND delivering some cars right now. That is likely to change in a couple of years with many other EV makers joining in.
Basically every major car company has mentioned that they are working on something (either pure EV or Plug-in hybrid). I think we will see the Mitsubishi MiEV, Th!nk, and Nissan EVs soon. Maybe something from Daimler and BMW soon after that.
In terms of something other than Tesla you could buy now it is either one of the leftover used NiMH vehicles from 1996-2000 (some hundreds of Toyota Rav4EVs and Ford Ranger EVs still running), something with 3 wheels (like the Myers NMG) or something that was a hand done conversion project, with the ACP Scion eBox perhaps the best example.
The Venturi Fetish is apparently "unobtanium" so it doesn't exactly count.
I don't think Tango is in proper production yet.
Zap, Miles, Zenn, & VentureVehicles keep teasing us...
Phoenix & Aptera seems rather close to production, but still only roam the streets in prototype form right now.
Anyways, there is lots more info to be found elsewhere on this forum, and on the web, so enough ramblings off the top of my head.