545 is a great score. With this you can get a ver good college through the All India quota in any major city. You can also get the best government college in your state as well. 

- MGM Indore

- GMC Bhopal

- BJMC Pune

-Motilal Nehru College Allahabad 

- Government Medical College Nagpur 

Listed above are some of the top most colleges where you can be enrolled. The list has many more colleges.

Dear Sir / Ma'm, 545 is a well aprreciable score in the NEET UG 2019. With this score, you can expect, Pariyaram Medical College, Pariyaram, Amala institute of Medical Sciences, Amalanagar, Believers Church Medical College Hospital, Thiruvalla, MES Academy of Medical Sciences, Malaparamba, Jubilee Mission Medical College and Research Institute, Thrissur to name a few in the state quota.  All the cutoffs for the All India were much higher than your score in the previous years'. So, you must better focus on your state counselling.