What is my best visa option folks?

47 year old semi retired self employed landlord from UK. 9 property rentals income more than enough to live from. I manage the properties remotely. Return home on Wednesday and want to know what visa is best to apply for until I turn 50 for retirement visa? Looking to return July was n longest visa possible. I will pay for bronze elite visa if I need to save any hassle but rather not If a better option.

Hi guys ! I wanna apply for the DTV but my only income is from my apartments .. so I own many properties in Italy and I rent the out so I have a monthly income and I pay tax of this income in Italy , but I don’t have any company cause I don’t need it I just rent get money and pay taxes on personal income tax.. so what should I show to apply the visa ? The rent contracts with my customers ? The bank statement ? Or the tax file declaration of my yearly income in Italy ?