There are many apps and websites that serve as online Booking Agents. I like to use GigSalad, there is a free side to the site that makes not only affordable but gives you a professional online presence. GigMaster is another online site similar to GigSalad. GigMaster does not offer a free membership side. With GigSalad you pay a percentage to the company for the gigs you book through them. A very fair booking fee and the people at GigSalad make sure you get paid. Similar to a dating site you can go onto GigSalad and swipe through various genres and ensembles. You can also book clowns and other entertainment. You can also create an online profile through Musical Chairs, a site that lists performance jobs by instrument and genre.