I'm a big fan of push/pull splits. If it were me, I would probably add in another exercise or two. I would squat both days for sure and I'm thinking one day focus on push related exercises and the other on pull. As far as rep counts, 5x5 would work but you could also consider something like 5x3 one week, 5x4 next week (use same weight as previous week), 5x5 the next (again, shoot for same weight as previous week if possible), then back to 5x3 with higher weight than you started. Good way to keep progressing forward.
Squat, bench, overhead press, close grip bench, calves (to spread out the exercises).
Squat, pullups, barbell rows, deadlifts, Romanian deadlifts
Anytime I was able to get in an extra workout I would probably hit some of the accessory things like curls, triceps extensions, flyes, face pulls, etc.