Find tests and measures can be challenging. Since many of these tools are sold commercially by their owners and protected by copyright, they're not available for free through library databases or web searches. Some may be published as part of an article, but you may still need permission from the creator to utilize the test in your own practice.
The following resources are freely available collections of tests and measures, shared by their creators. Each collection has its own area of focus that may or may not align with your needs. Some may not be approved for use outside a classroom setting.