Replacement for dying citrus tree

[AndrewAZ]

My Kishu mandarin is not doing well in this heat.  Large branches are dying.  30 days over 110 in AZ.
It's been watered well.  It has never really produced fruit and probably 8 years in ground.
So, when it cools down, I am going to take it out.
Looking for suggestions for a good variety.
What I have now is heirloom AZ variety orange, Rio red grapefruit, blood orange, whatever the Tangerine variety they sell at Lowes and a Cara Cara.
Not doing any kind of lime, as they attract roof rats.
Right now, I am leaning towards a yosemite gold. But, thought I would ask for suggestions.

[JJROSS54]

Andrew
I am growing some Kishu here is San Tan Valley but all mine are in pots, they wont take the full sun here, they are an understory tree, I keep mine under a mesquite tree all summer long and only put it out for the fall and winter, you could try putting some shade cloth over it to protect it from the sun or transplant into a pot and put it in the shade for the rest of the season.
This has been a brutal summer here and most of my inground citrus has sunburned leaves.
I do get some fruit on mine every year and it is delicious, don't give up yet.