Best Retail Pos Reccomendations

Hey everyone, so im looking to see what good pos systems or even software for a retail store. But im having some troubles. I dont want one that makes you pay a subscription, i want it to be a one and done thing. But i also dont need it to have its own credit card proccesor because i already have a 3rd party person for that. Are there any ones i can use without a proccesor? Also if it can intergrate 3rd party payments that would also be great, thanks!