How tall are you? I’m shorter, and the Eva strap is too long for me...I use the Felicie gold chain for all my pochettes. It works great as a crossbody for me, but I’ve read it’s too short if you’re taller. I also double it up and love that look as a shoulder carry.
For non LV, I think Mcraftleather on Etsy has the best straps. Real leather, superior quality, and the can customize the length for you.