The much desired open-ended (or lifetime) BTC mining contracts are back in stock for pre-order from Genesis. Mining will start 28-02-2018 which is when you will start to receive payouts.
Alot has already been written about Genesis, analyzing and comparing them so I will skip that, and just offer my small referral code if you decide to sign up with them: rCIpeV (using it gets you a 3% discount of any order).