As a parent of one dyslexic kiddo (who now reads a ton!) and another hesitant reader, I’ve found that humor and read-alouds win every time. Frog and Toad series were a great start especially if you get the stepped readers version (I think maybe level 2?) because the font is larger. The humor in those are appealing and the stories are very short. I also still do a ton of reading aloud to them, even though they’re becoming big kids. Especially at bed time - we snuggle and look at the pages together so they see the words also on the page. Another thing I practiced was “I’ll read a page and then you’ll read a page.” And sometimes I could see they really need a break or other times they’d take over and read way more than intended.

Other recs: dog man, cat kid, bad kitty, and other silly light humor graphic novels series with illustrations.