if you love Shmups/Twin stick boy I hope you own a PS4/Switch!
What I truly love this generation is how much love these genres are getting. Now I don't want to just list everything but will mention good few. I'm not that big into AAA games but both these systems are reminding me of Saturn back in the day. So many niche awesome games of different genres but the two that excite me most they have a lot to choose from. If you like twin stick, PS4 has the Housemarque games like Resogun, Matterfall, and Nex Machina and boy are you missing out if you have not played those yet. (I'm missing out as I have yet to buy Alienation) and Switch has while not as good but still neo un in Neon Chrome, Jydge and others.
PS4 is just loving me as a Shmup fan. Raiden V (I love this series), Darius Burst CS and a ton of ship DLC if you like SEGA, Konami, Cave and many others. Sine Mora EX, Caladrious Blaze, Ghost Blade HD, Astebreed, Sky Force and more. Switch shares some of those like Sie Mora, Sky Force and a couple others like Graceful Explosion Machine and RXN Raijin. Where Switch really shines is old Arcade shoot em ups. Zero Gunner 2, Gunbird, Samurai Aces, Strikers 1945 1 and 2, Blazing Star, Pulstar, Aero Fighters, GunBarich, Alpha Mission games, Zed Blade, Last Resort and others. The switch is also a dumping ground for many old Neo Geo arcade games as is PS4 but also more obscure stuff like Gate of Doom and a Hyrdo Thunder ish game Riptide Renegade which is great but off topic. There is more on the way for both systems new and old. It may not be as much as Genesis, Turbo16 or Saturn in the 90s but there is still plenty. I'd love to share my experiences if people are willing to share theirs with these systems with these genres.