I will start off by saying that although the Tomini is one of the smallest Tangs, it really needs a minimum of a 4ft 75 gallon tank. So your 36” won’t be suitable for a Tang. A 65 still limits you to fish in the 4” range IMO if they’re swimmers and not perching or bottom dwelling fish. A smaller species of dwarf angel would be my suggestion in place of a Tang.
Depending on how much of a risk you want to take with inverts, a Hawkfish would make a cool addition IMO with the Flame and Longnose being relatively more peaceful.
Basslets such as the Royal Gramma and Black Cap, as well as the Reef Basslets and Assessors are pretty but shy additions.
An Azure Damselfish is small, has nice colors, and isn’t too bad for a Damsel.
Cardinalfish are another possibility.
Small Fairy Wrasses and Flasher Wrasses.
Shrimp and Goby pairs.
Blennies.
Marine Betta (they get slightly larger but aren’t active fish, need a nice cave). If you pick one make sure to not have aggressive tank mates and make it your centerpiece.
Orchid Dottyback.
These are just some of the options for you to consider.