There are a few reclists in common use. The most popular one would be PaintedCZ's VCCV English reclist. Here's an entire playlist of video tutorials for the reclist. Be sure to check the video descriptions for downloads and other important links.
Another popular method is ARPAsing. This is a bit more flexible, as it doesn't require you to use any one specific reclist. There's also an ARPAsing phonemizer for OpenUtau, which means that you can use your finished voicebank just by typing in regular English words into the lyrics. Guides and downloads are available on the website here.
ARPAsing Resources and Directories: One stop shop for everything ARPAsing
arpasing.neocities.org
If you're a fan of tools like presamp and mkototemp, the same developer also released a set of English reclists. Here's a translation of the Delta English reclist release page. There's 8 reclists in the set, ranging from complex and detailed to short and efficient.
Table of Contents Overview List Principles Vowel Pronunciation Consonant Pronunciation
tl.tubs.wtf