For higher R-value and to minimize thermal bridging, open-cell spray foam between studs is better than closed-cell spray foam.
The Move to Spray Foam Insulation
High Density Low Expansion Spray Foam Prices Clearance
Five Types of R-Value - GreenBuildingAdvisor
Types of Insulation for Homes in Northern Indiana
ETW: Foundation - 3-1/2 of 2.0 PCF Closed-Cell Spray Polyurethane
Installing Closed-Cell Spray Foam Between Studs Is A Waste, 43% OFF
Installing Closed-Cell Spray Foam Between Studs is a Waste
CE Center - Moisture Control with Spray Foam Insulation
Types of Insulation - Advanced Insulation Solution
Installing Closed-Cell Spray Foam Between Studs Is A Waste, 43% OFF
Closed-Cell Foam between Studs Is a Waste - Fine Homebuilding
Armour Insulation - Icynene Spray Foam Installation
10 Types of Insulation All Homeowners Should Know - Bob Vila
Installing Closed-Cell Spray Foam Between Studs is a Waste - GreenBuildingAdvisor
Installing Closed-Cell Spray Foam Between Studs is a Waste