That area may do well as a rain garden.

I’m in zone 7a/7b (Oklahoma)The bed is south facing. The part near the house is in shade at the extremes of the sunshine hours and the front get nearly all sun

Now is the perfect time to paint the wall, since once you plant your new shrubs, it will be awkward and more difficult. Take these pictures to your local nursery ( not Lowe’s or Home Depot) and ask the nurseryman what will grow best in your specific climate. Tell him how much you can spend on shrubs. If you have money left over, fill in with annuals to add color.

Keep it simple.

I just wanted to comment that whatever Yaardvaark says do it! It took me two years but I finally have a front yard that I am happy to look at and Yaardvaark was a huge reason why. Not meaning to high jack your post I’m just giving a helpful tip.

Another idea is using a dwarf to mid-size Crape Myrtle with dwarf shrubs behind, and fountain grasses and perennials in front. Not necessarily a red Crape — I wanted to show a purple one, but my app doesn’t have it. I did a scheme very similar to this at my first house; I like the balance and interest of having something taller in the middle of closed-in, square beds, rather than stuff just planted up against walls. You should ask at your local nurseries what sizes, etc, of shrubs and such would do best here.

I used boxwoods, Mexican Feather grass, and lantana with the Crape, more to show placement than exact plants. There are many others that would work well. It’s hard to tell exact bed size in a picture, so your spot may not be large enough for everything I used, but hopefully gives a general idea ... also, we’re not seeing the entire front of your house for context and balance, so that’s another consideration.

If you do like the idea of using a Crape (you’d have to move your flag, though), this is a pretty good list showing colors, sizes, etc — although there are lots of newer varieties not on here —

https://aggie-horticulture.tamu.edu/databases/crapemyrtle/crape_myrtle_varieties.html

One more, very easy, just using a Crape, liriope groundcover, and whatever perennials you like in front. In real life, it wouldn’t look this lined up and uniform. :)