Great thread topic OP. I've been in the same house for 22 years and have been feeding the birds in the same place for all of that time. Down here in the Tampa area I get cardinals... tons of them, guess I'm the wheelhouse for them now lol... titmice, red headed woodpeckers, bluejays, purple martins, etc. Never know who shows up. Gold finches in the winter time.
One thing I started doing a few months ago, again... I had tried this before, is putting suet cakes on a couple of sheppard sp hooks so they are around 5' above the ground.
Down here its obviously hot so the regular cakes don't get much action other than the woodpeckers when I purposely don't fill the feeders. They pretty much melt and are nasty. They would work in a colder climate/time of year.
So I started using the no melt ones and, other than mourning doves and the cardinals they are a hit. Pretty cheap and the squirrels don't mess with them. The cake feeders are under two dollars at walmart and the cakes are just over a dollar apiece.
Couple of things I've learned... Orioles like sliced oranges quite a bit so if you are in an area where they live just quarter an orange and place it by the grape jelly.
If you really want to keep the squirrels, and chipmunks if you have them, away from your feeders here is an easy one.
Buy the cheapest cayenne pepper you can find... dollar store or something like that. Put how ever much of seeds you need to fill a feeder in a container. Put on disposable gloves. Pour just enough oil, vegetable, olive, whatever (not motor oil) in there so you can barely coat the seeds. Work through them so everything has some kind of coating of oil.
Then add half of your dollar container of cayenne pepper and work through as well. Fill feeder.
Pepper doesn't affect birds at all. But, mammals like me, you, and mr. squirrel Are affected. I keep one place, kind of a platform feeder, that I put out seed that is pepper free for them and whomever wants to land and eat. They don't even mess with the other feeders anymore... but it was pretty funny the first few times watching them stiffen up and then bolt away to the bird bath for a drink.