It depends on how integrated you want the system to be.
The NAD D 3045 has most of what you want in a compact single box, including a RIAA phono input and two-way bluetooth with Aptx, so you can connect bluetooth speakers and headphones, or use your phone to stream music to the system. It also have ARC HDMI, so you can connect it to your TV. It has plenty of digtial inputs too, and a DAC*, and a remote.
However: it is only 2x60Watt and has only 3 analogue inputs. So you have to match speakers and listening room carefully, and think about how many analogue devices you want to connect.
The NAD C 389 is a step up from the NAD D 3045 when it comes to power and connectivity.
A DAC* is a device that converts digital signals into analogue signals. A great thing about DAC's these days are that they are cheap and insanely good. DAC's are a great match with CD-players. If you connect your CD-player with a "digital cable" (called Coax or Toslink), the DAC will convert the signal, completely bypassing the DAC inside the CD-player. So you don't need to choose a CD-player based on reviews on how it sounds. Even the cheapest CD-player will sound good when connected to a quality DAC like the one in the above NAD. So choose your CD-player on looks and ergonomics, not its alleged "HiFi" qualities.
The flipside of these integrated solutions is that if a single component dies, the whole system may be useless. These integrated systems are practically impossible for third-parties to repair, and consist of proprietary parts that may be impossible to source after a few years.
The biggest game changers in HiFi when it comes to sound the last decades are: cheap and good DACs, "Digital Room Correction" via DSP's, quality digital amplifiers (Purify, nCore), and perhaps active speakers too.
"Room Correction": every normal room influence the sound, and sometimes in a very negative way. With "Digital Room Correction" you measure this influence, and "subtract" it from the sound before it comes out the speakers, thereby removing the rooms negative influence when listening. This is of course very simplified, but "Digital Room Correction" can sometime improve the listening experience more than anything else. It is still somewhat expensive to have if you want an "easy to use" integrated solution.
"Digital Amplifiers" using modules from Purify or nCore is able to deliver a huge amount of power without distortion, while still being fairly small and not consuming a lot of electricity, and are comparatively cheapish too.
The NAD C399 is an example of a digtial amplifier with a DAC, and "Digital Room Correction".
I am using NAD products just as examples because I recently researched them, and they showcase modern developments very well. But it is not a personal recommendation, since I haven't even heard any of their new amplifiers, and personally prefer a more "modular" HiFi system.
