I’d go with Hooke Road grab handles or even side steps as good budget-friendly mods. The grab handles add a lot of convenience, especially on bumpy trails, and make getting in and out way easier.
I switched to Wet Okole truck seat covers, and it’s been a game-changer. Their seat covers are custom-fit, so they cover the entire seat, including the back. The neoprene material is thick and durable, which helps keep everything in place when slide in and out.