Hello,where can I find or does anyone have a reliable list of sha plus hotels,,,, thinking of trying to get to Thailand in may,,,thanks

Agoda has a search criteria for SHA + hotels.  Pay attention to the added cost not always listed in the advertised per night price.

 

This site could be useful for your trip in May.

 

https://asq.in.th

Complete list here (and it's SHA Extra Plus now).

 

https://web.thailandsha.com/shaextraplus