It's not the time to invest in Bitcoin, it's better to look for other altcoins.
Find the exchange that offer a variety of crypto coins. I offer to consider cex.io. This review may be useful http://theproblem.wtf/cex-io/
Available trading pairs there:
BTC/USD
XRP/USD
ETH/USD
XLM/USD
BCH/USD
BTC/EUR
XRP/BTC
BTG/USD
ZEC/USD
ETH/BTC
XRP/EUR
ETH/EUR
XLM/BTC
DASH/USD
BCH/BTC
BTC/GBP
BTC/RUB
XLM/EUR
BCH/GBP
DASH/BTC
ETH/GBP
ZEC/BTC
BTG/BTC
BCH/EUR
ZEC/EUR
DASH/EUR
DASH/GBP
GHS/BTC