Would like to see Wallin/Sirenko/Kuzmin/Balole but you can bet Wach fits right into Fwank's budget and would give Joyce rounds without much risk.
Kabayel would be the logical choice as he's with Top Rank and hasn't been overly active of late, otherwise some journeyman who may give him a few rounds.
Kabayal seems to be the new pulev, had some good wins against the likes of Chisora some years ago now but has done very little since. His last fight was against Kevin Johnson
Kabayel is useless. That would be boring. I doubt they'd put him in with Wallin, although I think Joyce would win that. I reckon it would be a bit of a tear up and it is a tough one for Wallin stylistically. Both Joyce and Wallin would give it a good go. Kabayel, on the other hand, would be a snoozefest unless Joyce threw caution to the wind and wanted to get him out of there. He could easily outbox Kabayel to a decision, at worst.
I’d like to see Joyce fight hrgovic or yoka next. He fought both in the amateurs and they were entertaining fights. Check YouTube if you’ve not seen them before
Ortiz would be my first choice. Ortiz's counter punching vs Joyce's chin and Joyce's work rate vs Ortiz's limited gas tank. Hrgoivic would be my 2nd choice but realistically I don't see it happening. Hrgovic has an eliminator and will likely face McKean. Yoka would be my 3rd choice. Olympic controversy is a good story to sell the fight especially with the Rio boxing results under investigation and the possibility of some gold medals being reassigned. Imagine if Yoka is stripped of Gold and it's given to Joyce, so much beef, England vs France, easy fight to sell.
Kabayel already ducked Joyce and vacated his title and has done nothing since the Chisora win years ago. Chisora or Bakole would make for entertaining fights.