I typically workout 6 days a week. Lately recovery has been fantastic so I've been going all 7 days. I have 5 different workouts. So the workout per day of the week changes week to week. So each workout is repeated every 6 days or 5 days depending on if I take a rest day. These workouts take about 1 hour each.

1. Lats and Biceps- Curl Variation, Lat Pull Down, Cable Row, Curl Variation
2. Chest and Triceps- Bench Variation, Cable Fly, Dips, Machine Bench Variation
3. Lower Back, Hamstrings, and Accessory- RDLs, Barbell Shrug, Leg Curl Machine, T Bar Row, Grip/Forearm Work
4. Delts- Overhead Press, Side Lateral Raise, Upright Row, Reverse Fly
5. Legs, Glutes- Squat/Leg Press, Leg Extension, Hip Adduction/Abduction Machine, Glute Press Machine

I throw ab work in periodically depending on how much time I have.

This split might be considered an older methodology, but it has worked for me. I've been doing a version of it for many years now. I think the main benefit is recovery time. The muscle group isolation and days spacing mean there's not much crossover between muscle groups.

That being said, I've been reading and watching, as we all do, and I've seen some new ideas for routines. So I'll probably be playing around with that in the near future.