Getting into playing BA and SM in general

I've been collecting and painting models for a little while now, but I want to make a push towards getting an army built and playing games of 40k. I've historically been more into painting xenos and chaos models, but blood angels seem like they strike a good balance of cost efficiency, cool flavor, and a nice sprinkling of character models that I can have fun painting.

I happened to have picked up both combat patrols and the death company battleforce when that came out a few months ago, what are some other "must have" space marine models I should plan on picking up while I build my army? I'm not looking to chase the meta nor am I planning on buying any new models until I've built what I already have, I just want to have an idea of what a coherent army looks like. Ideally I would like to squeeze in Blood Angels specific stuff like death company led by chaplains, epic heroes, etc. I'm a Vorthos at heart 😅

Thanks for the advice!