Canal Saint Martin / 10e / Belleville / Montmartre recommendations!

Hey guys, i'm staying in Colonel Fabien with my girlfriend for 4 nights from tomorrow and looking for recommendations for nice coffee shops, patisseries, bookshops, good value food places, music venues or any cool places in the Canal Saint Martin / 10e / Belleville / Monmartre areas! Have had a look in the travel guides + online but also super keen to personal recommendations from you guys! Would love any suggestions! :) Thank you so much!