Input and advice on peach varieties for hot climate

I've been researching some mid-low chill peaches to try and find varieties that will grow well in my backyard.
I'm in Zone 8B, central texas, so we get anywhere from 400-700 chill hours depending on the year. Very strong direct sun, heat in the 100s during the summer, and a really long hot growing season (usually April-October).

I would love to hear your opinions or experiences with any of these varieties!

Variety	Chill Hours	Stone	Ripens
Flat Delight1	450	Semi-free
Rio Grande	400	Cling	May
La Feliciana	450-550	Free	June
Sam Houston	500	Free	June
Florida King	450	Cling	May
Texas Prince	500	Free	June
Royal Zest	500	Cling	June
Texas King	400
TexStar	450	Semi-free	May
Strawberry	400-500	Free	June-July
Babcock	250-300		July
Gold Dust	550		June
July Elberta	400-500		July
Scarlet Robe	400		July

I've also heard that Sentinels, Harvesters, Reglobe, Redskins, Dixieland, Springold, Biccentennials, June Gold, Bounty, and Red Baron varities are good options. Still looking up information on their respective chill hours.

One of the things I have to keep in mind is that our soil is 90% Houston Black Clay. It's very rich in nutrients but is extremely hard-packed and riddled with limestone and calichi deposits. I'm planning on sowing a cover crop over the entire backyard this winter to chop-and-drop in the spring (probably a winter rye/vetch mix). We have very little topsoil back there right now (probably only about 8 inches) so I've got a lot of work to do to build better soil and increase organic matter.

I'm a bit north of you, near Waco (8a), and have had good results with the 'Sam Houston' cultivar. I planted it last year and got one little peach this year, but I'm more impressed with the heat tolerance and the fact that I haven't watered it since last summer. It has also held up against the pest pressure (which has been horrible last winter and to this summer.

Hi there!  

I found this link to a website about Peach Production in Texas awhile back and thought it seemed pretty legit.  Considering that Fredricksburg has such great success growning yummy peaches I thought there had to be some varieties that I could grow around the San Antonio area, but I just wasn't ready this year so I will pass this onto you!

https://aggie-horticulture.tamu.edu/extension/peach/peach.html

Best of luck!  Let me know if you find this helpful and I would love to keep up with your progress if you do decide to plant a variety or two.

Be Well,
Sunflower

P.S. This article is from 1998 so it is possible that our Central Texas climate has changed a bit, but I believe they mention chilling next to the varieties so that may be helpful.