Hi Stefano, and welcome to the forums
One of the most important aspects in achieving a film look is to ensure you shoot with the most neutral profile possible in your camera. Colour reproduction, contrast and sharpness are key features of many old lenses, and you want to reproduce these as naturally as possible. You should avoid altering these aspects too much (if at all) in post-processing, too, as it's easy to lose the character of a lens by doing so.
Having captured your images with a neutral colour / contrast / sharpness profile, you really need to do a bit of post-processing if you want to emulate the look of film. Google Nik Collection is a powerful and free suite of plug-in tools for Lightroom, Photoshop and Photoshop Elements. Of these tools, Analog Efex Pro 2, Color Efex Pro 4 and Silver Efex Pro 2 are excellent for achieving both colour and monochrome film-like processing. The key is to use them fairly subtly - too much processing can lead to very extreme and artificial-looking results (some of the presets are way too heavy-handed, but they provide a good starting point).
The above steps will allow you to capture the rendering character of a lens accurately, and emulate the effects of film on the final processed image.
As for choosing a lens... Many modern lenses, such as those you've mentioned, have much better resolution, far greater contrast and fewer aberrations than old film-era glass. You can, of course, soften and reduce contrast in post-processing - that's certainly an option. Personally, though, I think it's better to use old film-era glass. That way, you're getting the authentic look of the lens right from the start.