Buy 12ax7 tube

The Genelax 12AX7 tubes worked wonders in my McIntosh C2500 preamp. Much more fully fleshed sound.  

Apart from the primary consideration that must be made, i.e. any tube's potential to synergize with your other components, speakers, room acoustics, etc, assuming you want a neutal tube, ala the Telefunken, which I consider one of the best, you might consider the not so old NOS EI12ax7a which was made with the Telefunken machinery which was purchased by EI. I just saw someone selling an unused octet of these tubes  (labeled ARC) for slightly under $200. A deal(!) if you can justify getting the octet. If you are interested in the Tele's you might do some research first. I haven't heard the other tubes you mentioned so I can't compare. 

I found these tube for 40$ in taobao
I cant afford more expensive stuff than 40$

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I own both the Raytheon & RCA black plate 12AX7’s and both (IMHO) are better than any new production 12AX7 tubes. For what it’s worth the RCA’s black plates are my favorite 12AX7’s. The RCA’s are on the mellow side but plenty of detail. I also own Mallards and Telefunken and to my ears the RCA’s are somewhere in the middle. Another great low distortion tube especially in the phono section is the RFT 12AX7.

First of all, I must say that it's preferable to buy tubes from a reputable dealer who's stock will be high quality and guaranteed. Tubes from a Chinese website may not be genuine or may not test as new or NOS. There are plenty of good, inexpensive dealers on Ebay.

Regarding your tubes, I see the Vincent uses 3 12AX7s (ECC83) in the preamp stage. I assume you are  replacing all 3. 
Telefunken are the most neutral and linear, but expensive. RCA Blackplates are affordable and offer a sweet midrange with good dynamics, $40 to $50 each. Raytheon is a low noise tube with open sonics. I would choose these NOS tubes over Genalex.

You'll want these tubes to be matched since they're in the preamp stage.

A reference for the 12AX7...
https://www.audioasylum.com/scripts/d.pl?audio/faq/joes-tubes.html#12AX7

On Ebay, Viva Tubes is a reputable dealer with good prices.
Brent Jessee has everything.