Naruto was mediocre to begin with and just straight up went down a 2-mile downhill slope once it basically became about Naruto's chubber for his ex-boyfriend Sasuke after the Tsunade arc. OP was mostly good until the end of Marineford but as CC said, it went straight to complete shit following Return to Sabaody/Fishman Island and Dressrosa and onwards are pretty much unbearable. I only recommend reading up to either the end of Impel Down or up to the final moments of Marineford, although there are still bad arcs here and there such as Skypiea and the mini-arc with Sanji's recruitment.
Bleach was only watchable/readable as generic, cliched popcorn entertainment up until volume 19 or so (around the end of the second arc) but quickly became something on par with Dragon Ball Super and just broke new records on how downhill a popular shonen series could go, pretty much epitomizing everything bad about SJ's system alongside the second part of OP, Toriko, Naruto etc.
If you want recommendations on good (or at least entertaining) action shonen, I recommend reading Devilman, the first 2/3rds of Dragon Ball, Rurouni Kenshin (final arc is pr subpar but nowhere near as much as the second halves of the series mentioned above), HnK up to the end of the Raoh saga, Kongo Banchou, Fullmetal Alchemist, Ryuroden (not all that consistent, but at least most battles are heady for a shonen), and some others I might be forgetting