Please help- Want to Buy Floor Standing Loudspeaker

Hi Guys, Thanks for taking your time to read this.

I am Nihir, from Vienna and I am very new to hi-fi system , And this will be my first Hi-fi set up which i am building up slowly. I have currently following :-

TV - Samsung 4K 65" UHD - UE65JU6450UXZG


AV Receiver - Denon AVRX2300W

Now i am looking for good quality sound system , my usage are listening to music from YouTube, Watching Netflix (4K UHD), Listening to Radio, Watching Movie, and sometimes Playing Music from Mobile.

I was having Sony Soundbar - HT CT790 , and i was not satisfied with Bass, so i sold it.

Currently I am looking for ONLY 2 Floor Standing loudspeaker, budget near 300€ Per piece. Also in future i want to get a Sub and a Center Speaker.

Let me know if you have any suggestion around , or which electronic store i can get good deal since it's christmas. I like to feel bass, but should not be over.

Thanks again for any suggestion