Where can one find a CRM application?

yes these CRM tools can help you with that but you should not choose any of them without considering your goals like what you need in CRM type of features and pricing and one more thing like you need it for a small or mid-sized business or maybe you need CRM for the big enterprises.

if you need CRM for small or mid-sized businesses you can go with this tool: Keap, Monday..com, ClickUp, and CrmOne.

for enterprises then you can use CRM tools like HubSpot, Zoho, Pipedrive, and Salesforce.