This is a bit darker in tone than Spy x Family, if you don't mind, BUT it is a GREAT and INTERESTING read with characters YOU WILL GET ATTACHED TOO! Let me introduce you to the BEST new-gen DARK FANTASY, ACTION SHOUNEN MANGA of the 2020s, the peak of human literature, Kagurabachi! If you're looking for a story with a more slow-burning pacing and world-building, but masterfully-written plot, realistically written and interesting characters with great designs, GORGEOUS ART that evolves with each new chapter, MOVIE-LIKE fighting choreography, BEAUTIFUL panelling and composition and NO ROMANCE, ZERO FANSERVICE AND ABSOLUTELY NO SEXUALISATION, ESPECIALLY OF IT'S FEMALE CAST!! GO READ IT NOW!!!
https://www.mangago.me/read-manga/kagurabachi/ (PEAK FICTION)
Also these other shounen/seinen (mostly action) mangas are pretty good, too:
https://www.mangago.me/read-manga/gokurakugai/
https://www.mangago.me/read-manga/windbreaker/
https://www.mangago.me/read-manga/tokyo_aliens/
https://www.mangago.me/read-manga/gachiakuta/
https://www.mangago.me/read-manga/galaxias/
https://www.mangago.me/read-manga/ghost_fixers/
https://www.mangago.me/read-manga/centuria/
https://www.mangago.me/read-manga/psycho_eyes/
https://www.mangago.me/read-manga/ruby_on_the_cake_hitogui_majo_no_bansankai/
https://www.mangago.me/read-manga/chainsaw_man/
https://www.mangago.me/read-manga/ultimate_exorcist_kiyoshi/
https://www.mangago.me/read-manga/madan_no_ichi/
https://www.mangago.me/read-manga/tongari_boushi_no_atelier/
https://www.mangago.me/read-manga/magical_girl_and_narco_wars/
https://www.mangago.me/read-manga/the_marshal_king/
https://www.mangago.me/read-manga/kai_hen_wizards/
https://www.mangago.me/read-manga/g_g_g/
HOLY SHIT KAGURABACHI MENTIONED
A WILD BACHIBRO SPOTTED??? DID YOU READ THE PEAK NEW CHAPTER??
NOT YET I'm gonna try to catch up since I lost this a while ago thankfully I found your reply bro bro
This must have been fate then, I hope you catch up soon, don't miss out on peak anymore, okay?
Yes, bro. I promise
I read spy x fam and I need another good and interesting read where I can get attached to the characters ヾ(☆▽☆)