Enroll in an infant/toddler co-op
Co-operative preschools often have parent-infant classes. Your baby learns to socialize with other children and you get to meet other parents. A trained preschool teacher leads the class, but each parent has a job to do during the class (like prepare snacks or help with part of the play area). During class and the monthly meetings, you get to attend parent education classes taught by a certified parent educator. (This comes in handy when you encounter the behavioral issues that kick in with toddlers.)
A co-op has many benefits. First, your child spends a bit of time away from you during class, which helps build confidence and independence. Also, your child gets to do messy art outside your home and gets used to the structure of a classroom. This area is lucky to have a plethora of established, excellent and affordable co-op preschools. Many co-op preschools offer scholarships.