Big E won the WWE Championship after successfully cashing in his Money in the Bank contract on last night's episode of RAW, and several former WWE Superstars took to Twitter to congratulate him.Having declared his intention to become WWE Champion before RAW, Big E made good on his word and ended the episode with the title. He did so after Bobby Lashley retained the belt against Randy Orton, winning a short but competitive match against The All-Mighty. Kofi Kingston and Xavier Woods immediately ran to the ring after he became WWE Champion to celebrate.BIG E IS THE NEW WWE CHAMPION!!!!!!!!@WWEBigE#WWERaw pic.twitter.com/7mPw1rdDKE— BIG E IS WWE CHAMPION (@WWE) September 14, 2021The moment has been met with universal praise from fans and wrestlers alike. We have covered the reactions of several current Superstars on Twitter, but many former WWE stars have also congratulated Big E on his victory. This shows how beloved he is among his peers, past and present. Quite a few AEW wrestlers reacted as well.Some of the most notable names include WWE Hall of Famers Mark Henry and Booker T, as well as AEW stars Andrade and Matt Hardy. Here is a compilation of the best reactions to Big E's WWE Championship win from former Superstars:Congratulations Big E Langston!!! Well deserved. ⁦@BustedOpenRadio⁩ ⁦@OfficialPWI⁩ pic.twitter.com/9Fqra2DM0K— TheMarkHenry (@TheMarkHenry) September 14, 2021WONDERFUL. pic.twitter.com/dTW6tVX39L— MATT HARDY (@MATTHARDYBRAND) September 14, 2021MY FRIEND IS A CHAMPION 🤩Congratulations @WWEBigE , you are incredible & deserve it all 💕— Jessica McKay (@JessicaMcKay) September 14, 2021I’m so happy for my friend @WWEBigE 🥺It’s so satisfying when the good people win 🤩😭👏💛 pic.twitter.com/aZESUcGS8S— Cassie Lee (@CassieLee) September 14, 2021Nice! Big E @WWEBigE 👊🏼👊🏼👊🏼— “EL IDOLO” ANDRADE (@AndradeElIdolo) September 14, 2021Wow 😊 @WWEBigE. That’s it. That’s the tweet.— Breezus (@MmmGorgeous) September 14, 2021Congrats @WWEBigE! pic.twitter.com/RYf8mi09Uk— Booker T. Huffman (@BookerT5x) September 14, 2021ps…Its a long way to the top if ya wanna Rock-n-Roll…CONGRATS BIG E 💪🏾#WWERAW @BustedOpenRadio— Bully Ray (@bullyray5150) September 14, 2021Get it @WWEBigE baby WE ARE PROUD OF YOU!!!👏🏼👏🏼👏🏼 https://t.co/sgpj15eqZ0 pic.twitter.com/yQbAfGYF2L— nodaysoff FRED ROSSER III (@realfredrosser) September 14, 2021Cash Wheeler breaks character with a heartfelt message.I couldn’t be happier. @WWEBigE My man. 👏🏻👏🏻👏🏻— Chair Enthusiast/Pinch Hitter (@ShawnSpears) September 14, 2021Happiness indeed https://t.co/DB0nZBcZhR— Joseph Ruud (@ErickRedBeard) September 14, 2021Congratulations to the new champ! @WWEBigE #WWERaw pic.twitter.com/nPKzRq9Nvi— Sean Waltman (@TheRealXPac) September 14, 2021Matt Cardona congratulates Big E with a profane tweet.Ettore!!! @WWEBigE pic.twitter.com/yDx2sy1pA9— Dylan Postl (@DylanPostl) September 14, 2021Here’s one for the good guys 🙏What a deserving human being is @WWEBigE https://t.co/hgybpQlOqR— Matthew Rehwoldt (@DramaKingMatt) September 14, 2021He is one of the legit good guys and I'm beyond happy for him!! Congrats bubba https://t.co/uDjlxBmQxt— Rodriguez 🇲🇽🇺🇸 (@RRWWE) September 14, 2021Congratulations @WWEBigE ✊🏿— JTG ( JAY THA GAWD ) (@Jtg1284) September 14, 2021You deserve it 👏🏽👏🏽👏🏽 https://t.co/RczH0T7bQ2— Samuray Del Sol® “Manny $” (@gloat) September 14, 2021What's next for Big E as WWE Champion?WWE could cement Big E as the next big star with a strong world title reign. Fans will hope to see him keep the Championship for a while and defend it against all challengers. Several Superstars may be in line for a title shot once the New Day Member finishes his feud with Bobby Lashley.This is exactly what Monday Night RAW needs. A fresh top babyface will give the red brand some fire, as it looks to further improve in quality. WWE has given Big E the ball, and hopefully, he runs with it full speed ahead.What was your reaction to Big E winning the WWE Championship? Let us know in the comments section below.