We need a new side objective ASAP

Actually, let's run with that. Certain killers have certain side objectives, and you can use that to narrow down who you are facing before you see them.

For example, let's say the door has a box on the switch, and you need to find a crowbar to yank it off. However, only three killers have that side objective, Pig, Wraith, or Trapper. It serves both as a stalling tool to slow down the game for the killers, but also provides the survivors with some information on who they are dealing with.

I don't necessarily think we need more, we just need more ways or reasons to interact with the ones we've got.

Like for instance, Totems. If the Killer isn't running a Hex Perk, there's no reason for the Survivors to break any of them. But what if there was? Say each Totem gave killers a speed buff to picking up Survivors, hooking Survivors, and kicking generators (only generators). They do so at a rate of +1% per living totem per generator completed, but then -2% per dead survivor. So, if you don't touch the Dulls, at the very end of the game, the Killer will be able to throw downed Survivors around like rag dolls with a +25% speed bonus. Don't want them to get them? Break the bones, but the buff is specifically for things that don't happen mid chase so you can ignore it if you want.

Or take Breakable Walls. The way I thought they'd work (or hoped they'd work) would be that Killers can go through them real quick... picture the Kool Aid man going through a wall. Basically they'd be a single use way for a Killer to get out ahead of a Survivor. Then after that, a Survivor can come by later and take 6-10 seconds to build a crude barrier out of the debris which then functions exactly like a thrown pallet. Once that crude barrier is destroyed, nothing further can be done with the wall.

Or like... chests. Chests are kind of useless unless you're running perks to buff or influence what you find. With the new animation, this might not make sense, but it would be neat if Survivors could do something to actively choose for the chest to give them a Medkit, Toolbox, Flashlight, or Map of the lowest rarity. Make your choice, get the worst version of what you want or roll the dice.

My only problem with this is killer side objectives are either not needed to be good or a large pain while survivors don't generally do side objectives (from my understanding) unless they see the killer has a hex or they need a medkit to heal and don't have one. (because the others are slugged or somethin)

That's true too, I was thinking when posting that more of like Devour Hope but you've got a point.