Here are some notable bloggers from the United Kingdom across various niches who have had significant influence and popularity:

1. Zoella (Zoe Sugg) – Lifestyle, beauty, and fashion
2. The Anna Edit (Anna Newton) – Lifestyle and beauty
3. Inthefrow (Victoria Magrath) – Fashion, beauty, and travel
4. Tanya Burr – Beauty, lifestyle, and fashion
5. Lily Pebbles (Lily Pebbles) – Beauty and lifestyle
6. The Londoner (Rosie Thomas) – Lifestyle and travel
7. Fashion Foie Gras (Emily Johnston) – Fashion and lifestyle
8. A Model Recommends (Ruth Crilly) – Beauty and lifestyle
9. Cupcakes and Cashmere (Emily Schuman) – Fashion, beauty, and lifestyle
10. The Blonde Salad (Chiara Ferragni) – Fashion and lifestyle (based in the UK but has international influence)
11. Jim Chapman – Lifestyle and fashion
12. The Frugality (Alexandra Stedman) – Fashion and lifestyle
13. The Travel Hack (Monica Stott) – Travel and lifestyle
14. The Small Things Blog (Kate Bryan) – Beauty and hair tutorials
15. Vivianna Does Makeup (Anna Newton) – Beauty and lifestyle
16. Kate La Vie (Kate Spiers) – Lifestyle and interior design
17. The Food Medic (Dr. Hazel Wallace) – Health, fitness, and nutrition
18. The Man Repeller (Leandra Medine) – Fashion and lifestyle (based in the UK but has international influence)
19. Fleur De Force (Fleur Bell) – Beauty and lifestyle
20. Niomi Smart – Health, wellness, and lifestyle

These bloggers cover a range of topics including fashion, beauty, lifestyle, travel, health, and wellness, and have garnered substantial followings and influence within the UK and beyond.