As you might know the existing twitter-node (node-red-node-twitter) does not search public tweets due to incompatibility with Twitter API V 2.0. I have updated the existing twitter-node to search public tweets using API V 2.0. I am submitting a pull request and hopefully my pull request gets approved.
Thanks for this - have you published it already?
I will review and merge if all is well.
EDIT - found it: Twitter API V2.0 public search update by shahramdj · Pull Request #954 · node-red/node-red-nodes · GitHub