I hate how boring a lot of browser's new tab pages are, so I went looking for a solution to my problem and found Tabliss! I use Firefox (on Mac) and Tabliss runs great for me. It also works on Chrome and Edge. You can add custom CSS elements to make it even more personalized! There is a community on Reddit dedicated to Tabliss layouts [r/tabliss] and people sharing their ideas for New Tab pages, so check that out too if you're looking for ideas!
Custom New Tab Page 
Tabliss
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