Need help on team did legend challenges and all Madden field pass https://www.mut.gg/24/lineup-builder/c66a74d8-3c24-42cd-9dc4-09ebd43723a4/
https://www.mut.gg/24/lineup-builder/c66a74d8-3c24-42cd-9dc4-09ebd43723a4/
I could see upgrading wr, hb, or te being a reasonable decision. Hard to say which I would prioritize without knowing your scheme though.
Logan Mankins would be a decent upgrade at RG if you want to spend there.
On defense, I would start with making sure you like how your secondary plays and then going from there.