You miss Hero-Beat, Monarch, and Lightsworn.
Hero-Beat is more of Anti-Meta than Meta, but they still tough opponent and proven to be tier 1-worthy. Their strategy really straight forward, but their Gemini Spark and Hero Blast is tough to deal with. You can try some trap stun and Royal Decree to deal with their Oppre, Hero Blast, and Skill Drain, though. But not their Gemini Spark, and it isn't help much against the bunch of 1900 Attacker+Honest.
Monarch (Any variant) still around but they still share one weakness. Mask of restrict. Zombie World can do for a substitute though.
Lightsworn still have it fang. They may look underwhelming lately,but their JD and Celestia is still problematic and still a tough opponent in some Tournament. So, Starlight Road can be a nice side-deck tech. And of course some Light Imprisoning Mirror can do.
For Infernity you can try Swallow Flip instead, to deal with your biggest problem, Infernity Archfiend and Mist Wurm. Crevice and DD Crow sounds help, but to most Pro Infernity player, it isn't unless it is in the main deck. They usually already side-in 3 Imperial Iron Wall and probably some Hero Rule 2 by time you side in those card. Shadow Imprisoning Mirror and Macro/Dimensional Fissure also not help much considering their load of Raigeki Break/PWWB and Trap Stun+Dust Tornado. On the other hand, Raioh, Consecrated Light, and Royal Decree Hurt Infernity more than you can imagine. And before I forgot, Cold Wave.
System Down is a necessity at least 1 on each side deck considering Machina is highly played almost anywhere, since they are Powerful and Low Budget. Cyber Dragon can be used too if your extra deck have some Chimeratech Fortress Dragon. But be wary, the wise Machina Player always have Zombie World ready in their side deck.