Help with an Anti-Conspiracy Group

[Black Leviathan]

My suggestions would be;

FBI. The players are part of an obscure department within The Bureau. They have a case history that gives them information. They have a mandate that they may or may not be invested in. They have an administration that holds them accountable to restraint in the field, financial accountability, and strict bureaucratic constraints. Gaining organization support or assets will require the players to produce evidence of a credible threat greater than the skepticism their department has traditionally experienced.

Arcana U. Players are part of an academic organization within a very old college, the sort of department that is largely invisible because of the arcane funding system of the school. Players have access to an immense library of the supernatural and lots of discarded scientific equipment maybe some pseudo science gear but very very little money. Characters are free to go nuts and shoot cultists in the face so long as the law doesn't catch them and ruin the school's good name. Gaining organization support will be trivial, but their ability to help will be limited to mobilizing other schools and conspiracy groups.

The Foundation. Players are part of a privately funded hunter group funded by a shadowy cabal, possibly even secretly funded by a supernatural group or individual. Players will have limited and purposed access to lore and much of their work will be gathering and documenting that information by chasing clues. Characters have very little accountability or restriction so long as they produced results. They could even been bailed out of jail for serious felonies if they're an asset to the group. The foundation is well insulated so it can be implicated in anything without harming the founders but likewise players who screw up can be cut out with no consequence. The Foundation has lavish access to resources, players can fly anywhere and stay in nice hotels with fat per-diems but they likely won't have access to restricted or esoteric gear. Like if Knight Rider was also a vampire hunter.