Would recommend to visit any Endodontist nearby who might after assessing the clinical condition and removal of decay from ur tooth suggest a procedure called direct pulp capping. If there is absolute pain in ur tooth then he/she might suggest for Rct followed by crown. But again the clinician can judge once the decay part of ur tooth has been removed completely.
Next Steps
Must visit a endodontist for more clear and transparent consultation
Health Tips
Kindly take immediate attention if you are looking for alternatives to Rct