I want to have an understanding of common Halacha and have an understanding of halacha. Do you know any good source for good quality Shulchan Aruch series, in audio or video?
R. Yaakov Yosef gave shiurim on Shulhan Aruch for many years. His style is clear, comprehensive and practical. I’d personally recommend the classes both for beginners and more advanced. Only caveat: they’re all in Hebrew.
There is the new Pirkei Shoshanim site - although please note that there is an associated cost. However, you can see some preview videos to gain a flavour of what to expect if this is something you would want to pursue.
Alternatively, there is a weekly shulchan aruch shiur from Rabbi Silber of the Institute For Jewish Continuity here
There is a 'daily dose of halacha' by the OU that is predominantly driven by Shulchan Aruch sources.
https://mishnaberurayomi.org/archive.php This has the whole mishna berura in English on audio. I use it myself and can recommend it. It is best to download the shiur then you can play it back at your own rate on VLC. It is certainly 'best' quality.
Rav Shmuel Fuerst has given(and continues to give) numerous halacha shiurim on many topics . They can be found here http://www.psak.org. If you are looking for something specific use the find box .