TotallyLegitimateandSafe

Steam link is garbage over WiFi due to the device hardware itself.  Use an Ethernet over power line plug in and save yourself a headache.
 
Or.. change your WiFi to use a lower frequency so it can be picked up - which can also interfere with other things.  Phones usually like channel 11 cause it doesn't really interfere with other devices.
While the steam links wifi... yeah - use channel six and clear some debris in the way of it.
 
Background - I have a sonic wall and an AC router(not a cheap one at that).  I get about a 500ms(best) to 43000ms delay, making dead by daylight or any other game played on it damn near unbearable without an ethernet connection.  I should also note that my router is directly above(6 ft) my steam link.
 
Better solution would be to RTP server your pc's screen to an elgato on a linux box and then stream it wherever you needed for 0 latency.  but eh'.

Steam link is garbage over WiFi due to the device hardware itself.  Use an Ethernet over power line plug in and save yourself a headache.
 
Or.. change your WiFi to use a lower frequency so it can be picked up - which can also interfere with other things.  Phones usually like channel 11 cause it doesn't really interfere with other devices.
While the steam links wifi... yeah - use channel six and clear some debris in the way of it.
 
Background - I have a sonic wall and an AC router(not a cheap one at that).  I get about a 500ms(best) to 43000ms delay, making dead by daylight or any other game played on it damn near unbearable without an ethernet connection.  I should also note that my router is directly above(6 ft) my steam link.
 
Better solution would be to RTP server your pc's screen to an elgato on a linux box and then stream it wherever you needed for 0 latency.  but eh'.

Honestly, at this stage, any major brand will have AM4 compatible coolers for all there existing line ups. For the price range you have listed, the Cryorig H7 is probably about the best you will get in that price point.