Full credit to this guys deal for the Switch games:
https://www.ozbargain.com.au/node/512552
I was half interested in some of the games from the other post but didn't really want them on Switch. Was very happy to see most of those titles are also available on PS4 for pretty awesome prices, Slay the spire is even cheaper than the Switch version.
The link goes to a page of all the PS4 games that are part of the summer sale but my personal picks are:
Slay the spire - $15
Children of Morta - $15
Mutant year zero - $15
Trine Ultimate Collection - $28
Risk of rain 2 - $28
Is Tennis World Tour any good? TIA