There will be lots of right wing parties and they will cause trouble, but uniting all the very different ideologies is a difficult task unlikely to be accomplished by anyone else.
it very Likely that most join the German National Freedom Party (Deutschvölkische Freiheitspartei) like OTL but instead of be a Rival to NSDAP they are there successor.
but without "the Little Annoying Austrian" the chances that Erich Ludendorff transform the party into popular people party is unlikely...
One name : Gregor Strasser
He actually joined the DVFP and became part of the 'triumvirate' leading it :
-Gregor Strasser himself
- Ludendorff as figurehead
- Albrecht von Graefe, comming from DNVP, being the 'networker' to the more established rightwingers
When Hitler returned from his too honorable imprisonment he almost immediatly left it an started to use his by the DVFP made contacts to build up the NSDAP formations north of the bavarian border.
I could well envisage him doing the same for the DVFP, even better, as von Graefe and Ludendorff could be easily sidelined by him. Both were too much 'old-style' to grab on actual politics and the new mechanisms (esp. propaganda).