Pros
Esteemed is basically a staffing agency, but they function as a supportive community of highly skilled tech experts in various niches (especially Drupal 8/9, but they also list jobs with WordPress, React, Vue, Angular, Magento, Laravel, Kentico, Sitecore and others.) They encourage the community to hang out in their company Slack and help answer each other's questions, and they regularly offer trainings and Lunch&Learn events. They are always hiring experienced developers who pass their screening assessments, which are generally a coding challenge and a multiple choice quiz. They have a wide range of opportunities available -- part-time, full-time, contract-to-hire, 1099/NEC and C2C. Most of the roles are fully remote (this was the case even before the COVID-19 pandemic) so if you have a good computer and a fast Internet connection, you're already set up to start. They will work with you to find the best role with the best pay to match your availability, skill level, and experience.
Cons
Since they work with a wide variety of agencies and end-clients, there is little consistency in the work environment from job to job. Most roles are contract (1099/NEC) with no benefits. (This is mitigated by the generally high pay rates you can get, so you can afford to pay for your own health care.) Many of the roles expect experienced developers, so be certain to come prepared with a portfolio of client work and a recent code sample demonstrating mastery of relevant APIs. The nature of the work is cyclical, since you generally build a site for a client who can maintain it on their own after that, so you don't have the security of long-term employment but they'll be happy to line you up with a new role whenever you're about to finish a job.