Fischer was a loon, Paul Morphy, prolific American player in the 19th century was an eccentric...
Armenian (in the USSR) Tigran Petrosian on the left, Viktor Korchnoi (center who would defect from the USSR), I think these types were pretty good.
Spassky, Fischer's opponent, is probably a good man, I believe I read up on him once, Boris, I'm not sure if he was an orphan but during World War II with all of the hardship in Russia, he was in something like an orphanage at that time in his life.
I tried at chess, I even read a number of books on it, played in tournaments, member of the USCF, United States Chess Federation, couldn't quite hack it. Mediocre, lower average, certainly nothing special. A lot of places to play on the web..
Kasparov was anti-Obama and now, he's anti-Trump, just concerning his political views, disagreeable mostly. I think he lives in NYC.
The champ before Kasparov, Anatoly Karpov, is okay. I think he actually opened up a chess school in Kansas, but reading his bio at wiki, he seems very supportive of the Russian leaders.