it is not surprisingly, that bitcoin is the number one in Google search. Its existence very popular in this world, and very general in common people. Sadly, that small coins can not compete with big coins such as Bitcoin, Ethereum, etc.
Google could serve any one interested in investment not necessarily cryptocurrency, so I prefer the trending cryptocurrency on twitter where most whales and top influencers on the space are active. Crypto analytics give the monthly details of the top ten cryptocurrency trend in previous month, which can be confirmed by most traders and users of twitter as relevant and useful.