I've been working on a hobby card game project for a while and I'm currently sharing it as a free Print & Play with a later option to support the project with buying the printed version.
Currently I had some success posting it on r/boardgames and got a very positive response from the Reddit community. In this reddit thread someone suggested pnpparadise as another place to share Print & Play games.
Could you suggest me some other places, to share a free Print & Play version of a game? It's a great way to collect a ton o of feedback as an indie game designer.