Branching Out
Deeply Rooted
I was thinking of this post Heirloomgal when I read Quail Seeds' Jamie Chevalier's post on summer crops including her thoughts on growing peppers, which is at the very bottom of this post: https://www.quailseeds.com/how-to/plants-of-summer-beans-corn-squashI think a tunnel will be very helpful for you; in my experience peppers are more in need of trapped heat than endless sunlight. Even sweet peppers tend to grow better for me with a little bit of shade.
Her thought is that peppers prefer sunlight from directly above (rather than the blazing sun hitting the plants from the side) during the heat of summer, with some radiant heat to keep them warmer overnight. I like her suggestion of keeping peppers in pots so you can locate them in the garden in spots where bush beans can shade them from the side. She also places stones on the surface of the soil, so that they can slowly release their heat overnight to keep the roots of the plant warmer. We have a low poly tunnel that I may try positioning over my pepper patch this year, to achieve that 'trapped heat'-- and there is no shortage of stones around here. Lol.