Thermal paste is like opinions, everyone has one that they like best. But the one I have found that seems to work very well is Arctic MX-6 as found at Amazon here.
Dear All,  I have an Alienware m15 R1 that I purchased back in 2017. Lately, the system is getting super heated up and one of the things I found common is to replace the thermal paste.  Kindly advise a suitable product as there are many options available, also please direct me to the manual link. After going through various forum posts, seems that application thickness is very critical and I will like to do it properly.  Any other advice to ensure it is done properly is highly appreciated Thank you 
m15 R1, suitable thermal paste, service manual link