How to read the dark horse star wars (Republic) comics in trade?

I assume this is the cover for issue one of the series that is renamed to star wars Republic at issue 46.

Issue 46 and onward are on marvel unlimited, but I want to get the first 45 issue in print preferably omnibus but trade will do please him me out idk why I'm so confused.

Also I looked on dark horses website and there is a bunch of trades and that's whats confusing me most.

If there's any other ones I should pick up as someone who wants to know about high Republic and the prequel era especially clone wars stuff that is very much appreciated. Thank you all