So finally reached a conclusion. Only option I have right now is a sound bar.
The reason is that , I live in a rented apartment and big sound is a problem for nearby apartments. My neighbor told that he faced similar issue that his neighbour complained about his sound.

((
So I will buy a cheaper one now and in future , will buy a 5.1 when I move to independent house.
So I have 2 options to select and Black Friday sale is going on
1. Vizio Sb3621 is $99
2. Samsung-HW-MM45Cis $149
The link.
https://m.costco.com/Samsung-HW-MM45C-35.8"-2.1-Channel-Soundbar-with-Wireless-Subwoofer.product.100380581.html
I listened to both and both sounds similar.
I have a samung tv. So is there any advantage if I opt for Samsung .this samung model is only available in Costco. No other sellers are selling it

no reviews about it. Vizio got high reviews which I posted here before.
Could you guys please suggest me which is best option in these 2