Console with the best post-replacement lineup, pre-PS4/XBO

[Wman1996]

I can hardly answer this question that well because most of the consoles with a lot of titles after replacement were ones I didn't play much.
But Mother 3 is one of my favorite games and a lot of other GBA games came out because of the initial "third pillar" approach.
PS2 got Persona 4, PS3 got a cross-gen release of Persona 5.
DS and 3DS still got first-party support, same with NES and SNES.
I feel like I almost have to pick PS2 just because of how much it got. Switch could potentially get one of the best post-replacement libraries to date. 3rd-party ports of older games and small games will likely still come in droves. And I think there's a few unannounced first-party games still coming to Switch. If a new Rhythm Heaven comes soon, I could see it being a Switch exclusive. I wouldn't even put it past Game Freak to have an inevitable Black and White Remake in 2026 or 2027 a Switch exclusive, so they don't need to put in the effort of developing it for Switch 2. You'd still get 2 platform audiences that way because of backwards compatibility, so a cross-gen release wouldn't be needed.