To be honest I think the N64 had better Nintendo 1st/2nd party support for the first 2 1/2 years than the Switch. Maybe the best of any Nintendo console
(September '96-Dec '98)
Super Mario 64
Wave Race 64
Pilotwings 64
Killer Instinct Gold
Star Wars: Shadows of the Empire
Mario Kart 64
Blast Corps
Star Fox 64
GoldenEye
Diddy Kong Racing
1080 Snowboarding
Yoshi’s Story
Banjo-Kazooie
F-Zero X
Zelda: Ocarina of Time
Star Wars: Rogue Squadron
Versus
(March 2017-June 2019)
Zelda: Breath of the Wild
Mario Kart 8 Deluxe
Splatoon 2
ARMS
Mario Odyessy
Xenoblade X
Mario + Rabbids
Pokemon Lets Go
Super Mario Party
Pokken Tourney
Mario Tennis Aces
Kirby Star Allies
Bayonetta 1 + 2
Labo
Super Smash Bros. Ultimate
Yoshi
I like the Switch a lot but a lot of its library is also jacked from the Wii U as well whereas the N64 was basically all original content.
N64 is the only system in history IMO that was actually supposed to be a huge success and was largely killed by a system format (carts only instead of compromising on cart + CD) decision. That allowed Sony the opportunity they needed to gain market leadership and by large part they've never really ceded that aside from a few down years with the PS3.
