Printable Heroes
Printable Heroes offers a great range of incredible looking miniatures that can be printed and constructed at home. While they do have a Patreon, which I recommend supporting if you’re able, they also offer a ton of them for free!
If you have access to small plastic bases, you can affix the miniatures to them for some really great looking pieces.
Check out their FAQ page for any questions on how to download the files and put the miniatures together.
It’s truly a great resource and it’s awesome that they’ve made so much high quality art available at no cost.