Frank Sinatra is the act with the most top 10 albums (40) and also the act with the longest span of top 10 albums (62 years).
… The Beatles made the top 10 with 23 consecutive albums from Meet The Beatles!through The Beatles At The Hollywood Bowl in 1977 (discounting seven minor releases and oddities).
via Chart Watch Extra: The Acts With The Most Top 10 Albums, Ever – Chart Watch.