two main kinds - 1) one (more practical, i.e making sure that the side projects actually hone my existing skills - still deciding between building another CRUD

two main kinds - 1) one (more practical, i.e making sure that the side projects actually hone my existing skills - still deciding between building another CRUD app or just brushing up on my ds/a more -- any advice?) 2) exploratory (trying to build a scraper for entertainment venues and creating a map based visualization for public to use when the covid-19 measures are eased in my country)