6: Alexander Grischuk
Russian GM Alexander Grischuk (aka Sasha) has won the Russian Championship, the World Blitz Chess Championship 3 times, competed in 5 Candidates Tournaments, and won two team gold medals at the Chess Olympiad.
He qualified to play in the Candidates Tournament 2020, in which he is tied in 2nd place with 3.5/7, still unbeaten.
7: Levon Aronian
Levon Aronian is an Armenian chess Grandmaster that has occupied the #2 place of the FIDE ranking many times and has been top 10 in the world consistently since 2005.
He has been rapid, blitz and Chess960 world champion, and won the FIDE World Cup in 2005 and 2017.
Levon Aronian has won 3 gold team medals in the Chess Olympiads.
8: Wesley So
Wesley So is a Filipino-American Grandmaster who has won the national championships of both countries.
He is also the fifth-highest rated player of all time, with a peak Elo rating of 2822.
9: Teimour Radjabov
Teimour Radjabov is a Grandmaster from Azerbaijan with a peak Elo rating of 2793 in 2012.
Radjabov won the 2019 FIDE World Cup and thus qualified to participate in the following Candidates tournament. Some controversy arose when he chose to withdraw before the tournament began due to concerns over Covid-19 and then the tournament was postponed half-way through.
10: Anish Giri
Anish Giri was born in Russia but plays for the Netherlands. He first reached the top 10 of the FIDE ranking in 2014 and in 2016 he was #3 in the world.
Giri became Grandmaster at the young age of 14 years and 7 months.
In 2020 there are several amazing chess players who are not in the top 10 but that definitely deserve to be mentioned.
#11 Shakhriyar Mamedyarov
Mamedyarov is the sixth-highest rated player in the history of chess with a peak Elo rating of 2820 in September 2018.
He has been World Rapid Champion and World Junior Champion, and has taken part in 3 Candidates Tournaments.
#15 Viswanathan Anand
What can we say about Vishy Anand? If we are listing the best chess players in the world, we can’t forget about him.He has been an elite and top 10 player for over 25 years.
Vishy Anand has been World Champion on 5 different occasions (2000, 2007, 2008, 2010, and 2012).
He was #1 in the FIDE ranking for 21 months.