Is it OK to put Radiyallahu Anhu after Muawiya bin Abu Sufyan who was not a rightly guided caliph?

I really find no reason to apply a blanket "Radiyallahu Anhu"(Allah is pleased with him) to all Sahaba specially those involved in fighting with Ahlebayt and breaking pledge with Hasan A.S? Also I found no Ahadith mentioning virtues of Muaviyah almost all other major sahabas have meritorious hadith praising them >Quran 9:100. And the first to embrace Islam of the Muhajirun (those who migrated from Makkah to Al-Madinah) and the Ansar (the citizens of Al-Madinah who helped and gave aid to the Muhajirun) and also those who followed them exactly (in Faith). **Allah is well-pleased with them as they are well-pleased with Him**. He has prepared for them Gardens under which rivers flow (Paradise), to dwell therein forever. That is the supreme success. I have the understanding that the verse Sura Tauba 9:100 from where "Radiyallahu Anhu" is taken applies at least to all to Muhajir and Ansar and Muawiyah was neither, does he also include in 9:100? Is my understanding correct as I respect all Sahabas ? but my heart does not allow me to say this after such people? And I believe but not sure of earliest texts of the first three generations of Muslims ever applied any salutation to any of the Sahaba.