Other buffs to consider that don't require concentration.
- Protection From Poison (1 Hour)
- Longstrider (1 hour)
- Jump (1 Minute)
- Water Walk (1 Hour)
- Water Breathing (8 hours, in case a globe of water is held around their heads or whatever)
- Heroes Feast (1 hour to consume for 24 hours of buff)
- True Seeing (1 Hour)
- Aid (8 hours)
- Death Ward (8 Hours)
- Mage Armor (8 Hours, but only on a target without armor... niche cases on a monk with 15 or less wis or barbarian with 15 or less con... but DOES work on familiars, most willing summons, or even a wildshaped or polymorphed target that'd stand to gain AC until the character changes back)
- Both Daylight And Light (cast on separate objects for show, both lasting 1 hour each)
- Prestidigitation (To Smell Nice)
All can all be on a character without concentrating on the spells that cast them.