There is this Phenomenon called 'Fanboi' and 'Fangal'. Let me try to explain through Personal Experience;
A few years back it was AliceinVapeland. You could not turn on ECF without being bombarded by AiV fans. There was also Ahlusions, limited customer size and a 'Super Secret' separate website. I am a Member of both, but no longer shop there. Recently it has become NicoTicket. You make a negative comment about that Vendor and his 'Fanboi and Fangal' club will literally follow you around the ECF to insult you. And, yes I am speaking from personal experience.
Asking for the "Best E-Liquid" is like saying "OK, if I throw myself into Traffic, which Vehicle should I want to run over me ?"
All Tastes are Subjective. I CANNOT tell you what you would like, that is entirely up to you to decide. I would suggest looking up an old thread in this forum called "Top 5 Vendors" if you want to start with popular vendors. I would also suggest that you try limited quantities, such as sample packs and small bottles, and go back to the ones you like. It will take awhile, but it is something we've all done. It took 20 or so Vendors and over 100 flavors for me, but I now have maybe 25 flavors I really like.
For the record; I order Naturally Extracted Tobaccos from Heather's Heavenly Vapes and MyVapeJuice.com because I like lighter, sweeter NET's. I get Bakery and Fruit Flavors from Highbrow Vapors (and add extra flavor to everything there). I also return to AltCig.com for Sweets and Milkshake Flavors. None of which means anything to anyone but me, because All Tastes are Subjective ! Good Luck in your search....