TDR Production Bundle £75:
https://www.pluginboutique.com/produ...erpage-nosto-1
In terms of FX most of it can really be done with what the DAW came with, but for about 100 smackaroons you could pick up U-HE Diva Synth and Tokyo Dawn Nova GE in the sale. I've got both and those are useful, flexible quality plugins I don't regret.
Then there is Plasmonic in the sale too:
https://rhizomatic.fr/
$99.
ARVerb - a nice recent discovery for $17.
https://arverb.com/