Update for The Faithful and Pride
Pride does quite a few useful things in a vRage lineup. Rush Keeper is a fantastic rule, but has a major issue. In particular, in this case it's on a 50mm model with a 1" melee zone. This means positioning Pride's base to actually threaten a counter charge is quite difficult. There will always be blind spots Pride can't reach. However you still get to force your opponent into those slots, or to engage Pride, either of which is a solid upside. Also on the off chance your opponent forgets it they probably are in a lot of trouble - getting unexpectedly knocked down and engaged while facing down a Rage team is a bad place to be. Predatory Gaze is also good for making footballing teams' goal runs less efficient, and isn't easily negated - you can't stay away from Pride to ignore it like you can with Horrific Odour, you just have to pay the tax.
Pride is a mascot that helps your bad matchups (kicking, football heavy teams) so I consider the cat a pretty good include in any team. It's difficult to justify multiple mascots, though, especially with new releases. Personally I'm currently running either Coin only, or Pride only. Pride has another major advantage though - the Solthecian trait. This means that you're able to take a lineup like Mist, Hemlocke, Minx, Gutter - what I prefer when I need to kick off with a Rage team - and still be able to give Shadow Like to Mist to improve his turn one goal threat. This helps you put pressure on the opponent and get set up for turn two.
Spigot is in some ways similar to Decimate. He's good at both beatdown and football, which is a great place to be. He's a great kicker and has an excellent goal threat. His damage potential is somewhat limited by his one inch melee zone, though, and he doesn't reliably do much damage - but when he's set up by his team he's pretty deadly. He's reasonable at getting the ball back, too - though he isn't particularly fast with an underwhelming 9" threat range on a ball carrier. Spigot is a model I don't think Rage will be able to include often - he already has a damage dealer who offers a lot of payoff for setup in Gutter, so his other models probably want to be consistent solo (like Decimate), or better at ball retrieval (like Mist). His main upside is his access to a personal KD, which is a nice upside.
Fangtooth is pretty scary now. You can't target him with Red Fury, which is clearly a real downside, but he's potentially still a good include. F2 is the only model other than Hemlocke to help against conditions and the only model other than Benediction that can reliably put a melee zone on someone without getting beaten down too hard immediately afterwards. This has interesting team building implications - since Benediction is pretty much a Rage-only model he makes taking other captains awkward. Fangtooth has a lot of relevance in Brisket and Blackheart, so by taking him you get much more flexibility in dual captain rosters. He also enables turn one goal runs well. The top half of Fangtooth's playbook has a lot of very solid results in it, and he also wraps well, so anything that gets him more dice or reduces DEF is great for him.
Like A&G, Fangtooth also brings big damage numbers. He's not consistent at hitting them - though running Decimate or Minx helps a lot - but he does provide a secondary option for killing high toughness targets - which is something the team can struggle with if Rage isn't able to use his own playbook or apply Bloody Coin. Speaking of Rage's Heroic, it isn't very valuable on Fangtooth - since you only get to make three swings with it. You're also using Bloody Coin without getting any value out of it during Rage's own activation which isn't a great position to be in. Usually Fangtooth is going to be the setup model - move up, KD, do a bit of damage - and then Rage follows up. He isn't quite as good at setup as Benediction is - since losing Impart Wisdom and Red Fury pushes is a real downside - but in exchange, you get a damage dealer who can kill things rather than the useless brick of hitpoints that is Benny, and some extra passing and anti-condition utility.