Essentials has quite a few replacements, a popular one being Nucleus
Permissions wise, again there are a few options, but PermissionsEx is again a popular choice
Vault isn’t needed - Sponge has an Economy API built right in, and Permissions make far more sense too.
There’s a few options for land protection depending on what you want to do:
- Nations is very Towny-like
- Polis
- GriefPrevention does both “towns” (in a very simplistic way) and also anti-grief
Theres a handful of chest shop plugins on the forums, as is the same for economy plugins.