Not sure if the community is interested in deal posts and digital implementations so why not try both?
The Steam Summer Sale is on and it includes a bunch of digital boardgame implementations. Unfortunately the “boardgame” and “tabletop” user tags are a bit polluted so have to wade through the noise. Here are some standouts I see (USD prices), please add yours in the comments.
- Aeon’s End - $1.94
$14.99 - One Deck Dungeon $0.99
9.99 - Scythe - $7.99
$17.99 - Sentinels of the Multiverse $0.99
9.99 - Spirit Island $12.48
24.99(all time low I believe) - Tabletop Simulator - $9.99
$19.99 - Wingspan $9.99
19.99
Note that some publishers do matching sales on mobile so for example One Deck Dungeon is on sale on Android too.
Edit: relevant BGG forum post with some more
When you launch TTS there is an option to browse existing tables and you may find something there. Another option is to find or organize games in some online community. For example the more popular bardgame podcasts often have Discord servers and they may have channels dedicated for this purpose.
I personally rarely use TTS for online games (I much prefer BGA or Yucata for that) but I still find it very useful for solo or even to just to get familiar with the components of a game before buying a physical copy.