>>36329896yeah, everything after gym 4 is a crossroads (in both games of GSC and RBY. I think the 'canon' Kanto gameplan is Rock Tunnel -> Pokemon Tower -> Rocket GameCorner -> Celdaon Gym -> Finish Pokemon Tower -> Snorlax west of Celadon and Cycling Road into Fuschia Gym. Then use the Routes east of Fushcia to grind for Silph Co and Sabrina after
But that's just what I typically do, there could be tons of players that NEVER do that specific route which is charming I suppose but sad that the level balance suffers because of it
(pic is East snorlax below lavender)